gnu: Use HTTPS package home pages wherever possible.

* gnu/packages/accessibility.scm (florence)[home-page]: Use HTTPS.
* gnu/packages/admin.scm (netcat, nmon)[home-page]: Likewise.
* gnu/packages/algebra.scm (mpfrcx, cm, flint, fftw, r-dtt)[home-page]:
Likewise.
* gnu/packages/apr.scm (apr, apr-util)[home-page]: Likewise.
* gnu/packages/aspell.scm (aspell-dict-it)[home-page]: Likewise.
* gnu/packages/astronomy.scm (casacore, sextractor, libnova)
(xplanet)[home-page]: Likewise.
* gnu/packages/audio.scm (libtimidity, alsa-modular-synth, azr3, tao)
(freepats, rakarrack, liblo, libshout-idjc, timidity++, libsbsms)
(libmodplug, libxmp, xmp, sox, drc, gsm, gnaural)
(streamripper)[home-page]: Likewise.
* gnu/packages/authentication.scm (pamtester)[home-page]: Likewise.
* gnu/packages/backup.scm (grsync)[home-page]: Likewise.
* gnu/packages/bioconductor.scm (r-nmf, r-edger, r-limma)
(r-plgem)[home-page]: Likewise.
* gnu/packages/bioinformatics.scm (python-biom-format, bowtie, bowtie1)
(bwa, crossmap, java-htsjdk, java-htsjdk-latest, java-picard)
(java-picard-2.10.3, kaiju, proteinortho, rsem, rseqc, seek, samtools)
(snap-aligner, subread, stringtie, r-centipede, prinseq, emboss, phylip)
(libsbml)[home-page]: Likewise.
* gnu/packages/build-tools.scm (tup)[home-page]: Likewise.
* gnu/packages/cdrom.scm (libcddb, cdrdao, cdrtools)
(cd-discid)[home-page]: Likewise.
* gnu/packages/check.scm (cunit, python-nose)
(python-pyhamcrest)[home-page]: Likewise.
* gnu/packages/chemistry.scm (gromacs)[home-page]: Likewise.
* gnu/packages/chez.scm (chez-fmt)[home-page]: Likewise.
* gnu/packages/code.scm (lcov, uncrustify, cscope)[home-page]: Likewise.
* gnu/packages/compression.scm (p7zip)[home-page]: Likewise.
* gnu/packages/cran.scm (r-emdist, r-proj4, r-zoo, r-ggalluvial)
(r-orgmassspecr, r-polychrome, r-partykit, r-rcpp, r-ff, r-emdbook)
(r-fitdistrplus, r-linprog, r-geometry, r-dtw, r-fst, r-rjags)
(r-intergraph, r-qualv, r-labelled, r-survey, r-coin, r-fmsb, r-tm)
(r-corpcor, r-rmpfr, r-spatialextremes, r-longitudinal, r-genenet)
(r-bayesm, r-seqinr, r-mpm, r-text2vec, r-rgdal, r-seewave, r-hdrcde)
(r-shapes, r-anytime, r-stm, r-d3network, r-tam, r-directlabels)
(r-spatstat-utils, r-spatstat-sparse, r-spatstat-data, r-spatstat-geom)
(r-spatstat-core, r-spatstat-linnet, r-spatstat-random, r-spatstat)
(r-rcpptoml, r-mlecens, r-seurat, r-mlearning, r-zooimage)[home-page]:
Likewise.
* gnu/packages/crates-io.scm (rust-nickel-0.11, rust-thrift-0.13)
(rust-trust-dns-https-0.20, rust-trust-dns-native-tls-0.20)
(rust-trust-dns-openssl-0.20, rust-trust-dns-proto-0.20)
(rust-trust-dns-resolver-0.20, rust-trust-dns-rustls-0.20)
(rust-uint-0.9, rust-yaml-rust-0.4)[home-page]: Likewise.
* gnu/packages/crypto.scm (libdecaf, ccrypt)[home-page]: Likewise.
* gnu/packages/curl.scm (curlpp)[home-page]: Likewise.
* gnu/packages/databases.scm (python-pylibmc, unixodbc, wiredtiger)
(libpqxx, mdbtools, virtuoso-ose, libdbi, libdbi-drivers)
(soci)[home-page]: Likewise.
* gnu/packages/debian.scm (apt-mirror)[home-page]: Likewise.
* gnu/packages/debug.scm (remake)[home-page]: Likewise.
* gnu/packages/disk.scm (sdparm, idle3-tools, duc)[home-page]: Likewise.
* gnu/packages/django.scm (python-django-haystack)[home-page]: Likewise.
* gnu/packages/djvu.scm (djvulibre, djview)[home-page]: Likewise.
* gnu/packages/dns.scm (dnsmasq)[home-page]: Likewise.
* gnu/packages/docbook.scm (dblatex, docbook2x)[home-page]: Likewise.
* gnu/packages/documentation.scm (scrollkeeper)[home-page]: Likewise.
* gnu/packages/ebook.scm (liblinebreak)[home-page]: Likewise.
* gnu/packages/electronics.scm (xoscope)[home-page]: Likewise.
* gnu/packages/emacs-xyz.scm (emacs-bbdb, emacs-caps-lock, emacs-djvu)
(emacs-pabbrev, emacs-twittering-mode, emacs-filladapt, emacs-rudel)
(emacs-stream, emacspeak, emacs-cc-mode, emacs-eldoc, emacs-jsonrpc)
(emacs-gtk-look, emacs-xclip, emacs-slime-volleyball, emacs-minimap)
(emacs-auto-dictionary-mode, emacs-persist, emacs-shell-command+)
(emacs-map, emacs-xref, emacs-dictionary)[home-page]: Likewise.
* gnu/packages/embedded.scm (sdcc)[home-page]: Likewise.
* gnu/packages/engineering.scm (asco, libngspice, libspnav)
(openctm)[home-page]: Likewise.
* gnu/packages/erlang.scm (erlang-erlware-commons)[home-page]: Likewise.
* gnu/packages/file-systems.scm (jfsutils, curlftpfs)[home-page]:
Likewise.
* gnu/packages/finance.scm (gbonds)[home-page]: Likewise.
* gnu/packages/flashing-tools.scm (dfu-util, srecord)[home-page]:
Likewise.
* gnu/packages/fltk.scm (ntk)[home-page]: Likewise.
* gnu/packages/fonts.scm (font-terminus, font-tex-gyre)
(font-comic-neue)[home-page]: Likewise.
* gnu/packages/fontutils.scm (ttf2pt1, potrace, libspiro)[home-page]:
Likewise.
* gnu/packages/fpga.scm (icestorm, gtkwave, gtkwave)
(python-myhdl)[home-page]: Likewise.
* gnu/packages/freedesktop.scm (libatasmart)[home-page]: Likewise.
* gnu/packages/ftp.scm (weex)[home-page]: Likewise.
* gnu/packages/game-development.scm (dds, python-tmx, sfxr, quesoglc)
(eureka, plib)[home-page]: Likewise.
* gnu/packages/games.scm (abe, alex4, armagetronad, barony)
(foobillard++, golly, ltris, pipewalker, prboom-plus, trigger-rally)
(cmatrix, pinball, pioneers, tennix, chromium-bsu, freeciv, kiki)
(quakespasm, frotz, frotz-dumb-terminal, frotz-sdl, btanks)
(flare-engine, chessx, barrage, cgoban, passage)[home-page]: Likewise.
* gnu/packages/geo.scm (python-geopandas, saga)[home-page]: Likewise.
* gnu/packages/gl.scm (freeglut, gl2ps)[home-page]: Likewise.
* gnu/packages/gnome.scm (cogl, clutter-gtk, clutter-gst, bluefish)
(workrave)[home-page]: Likewise.
* gnu/packages/gnustep.scm (wmnd, wmfire, wmfire)[home-page]: Likewise.
* gnu/packages/graph.scm (mscgen)[home-page]: Likewise.
* gnu/packages/graphics.scm (assimp, alembic, ctl, agg)
(opencsg)[home-page]: Likewise.
* gnu/packages/graphviz.scm (gts)[home-page]: Likewise.
* gnu/packages/gtk.scm (gtkspell3)[home-page]: Likewise.
* gnu/packages/guile-xyz.scm (guile-irregex)[home-page]: Likewise.
* gnu/packages/haskell-apps.scm (cpphs)[home-page]: Likewise.
* gnu/packages/haskell-check.scm (ghc-hunit)[home-page]: Likewise.
* gnu/packages/haskell-web.scm (ghc-http-client-restricted)
(ghc-blaze-html, ghc-happstack-server, ghc-sourcemap)[home-page]:
Likewise.
* gnu/packages/haskell-xyz.scm (ghc-assoc, ghc-cairo, ghc-cborg)
(ghc-csv, ghc-glob, ghc-gtk2hs-buildtools, ghc-hmatrix-gsl-stats)
(ghc-intervalmap, ghc-lens-family-core, ghc-managed, ghc-mountpoints)
(ghc-network-multicast, ghc-optional-args, ghc-regex, ghc-spoon)
(ghc-transformers, ghc-turtle, ghc-utf8-light, ghc-wizards)
(ghc-template-haskell, ghc-boot-th, ghc-binary-orphans)
(ghc-postgresql-simple)[home-page]: Likewise.
* gnu/packages/hexedit.scm (ht, bvi)[home-page]: Likewise.
* gnu/packages/hunspell.scm (hunspell-dict-hu)[home-page]: Likewise.
* gnu/packages/image-processing.scm (mia)[home-page]: Likewise.
* gnu/packages/image-viewers.scm (geeqie, gpicview, luminance-hdr)
(qiv)[home-page]: Likewise.
* gnu/packages/image.scm (libuemf, devil, steghide, optipng, niftilib)
(sng, mtpaint)[home-page]: Likewise.
* gnu/packages/java-xml.scm (java-simple-xml, java-jaxp)
(java-apache-xml-commons-resolver)[home-page]: Likewise.
* gnu/packages/java.scm (java-cisd-base, java-cisd-args4j)
(java-hamcrest-core, java-jsr305, java-eclipse-osgi)
(java-eclipse-equinox-common, java-eclipse-core-jobs)
(java-eclipse-equinox-registry, java-eclipse-equinox-app)
(java-eclipse-equinox-preferences, java-eclipse-core-contenttype)
(java-eclipse-text, java-treelayout, java-aopalliance, java-jeromq)
(java-cdi-api)[home-page]: Likewise.
* gnu/packages/jemalloc.scm (jemalloc-4.5.0)[home-page]: Likewise.
* gnu/packages/julia-xyz.scm (julia-recipespipeline)[home-page]:
Likewise.
* gnu/packages/kde-internet.scm (kget)[home-page]: Likewise.
* gnu/packages/kde-systemtools.scm (dolphin-plugins)
(konsole)[home-page]: Likewise.
* gnu/packages/kodi.scm (fstrcmp)[home-page]: Likewise.
* gnu/packages/language.scm (hime, libchewing)[home-page]: Likewise.
* gnu/packages/lego.scm (nqc)[home-page]: Likewise.
* gnu/packages/lesstif.scm (lesstif)[home-page]: Likewise.
* gnu/packages/libcanberra.scm (libcanberra)[home-page]: Likewise.
* gnu/packages/libdaemon.scm (libdaemon)[home-page]: Likewise.
* gnu/packages/libffi.scm (libffi)[home-page]: Likewise.
* gnu/packages/libreoffice.scm (libwpd, libwpg, libwps)[home-page]:
Likewise.
* gnu/packages/libusb.scm (libmtp, gmtp)[home-page]: Likewise.
* gnu/packages/linux.scm (e2fsprogs, extundelete, lsscsi, net-tools)
(kbd, sysfsutils, cpuid, libpfm4)[home-page]: Likewise.
* gnu/packages/lisp-check.scm (sbcl-ptester, sbcl-xlunit)[home-page]:
Likewise.
* gnu/packages/lisp-xyz.scm (sbcl-html-encode, sbcl-py-configparser)
(sbcl-cl-utilities, sbcl-series, sbcl-uffi, sbcl-clsql, sbcl-sycamore)
(sbcl-osicat, sbcl-hu.dwim.common, sbcl-caveman, sbcl-trivial-shell)
(sbcl-trivial-benchmark, sbcl-screamer, sbcl-smug)[home-page]: Likewise.
* gnu/packages/lisp.scm (lush2)[home-page]: Likewise.
* gnu/packages/logging.scm (log4cpp)[home-page]: Likewise.
* gnu/packages/lua.scm (lua-ldoc)[home-page]: Likewise.
* gnu/packages/machine-learning.scm (mcl, openfst, rxcpp)[home-page]:
Likewise.
* gnu/packages/mail.scm (muchsync, procmail, sendmail)
(opensmtpd-filter-dkimsign, crm114)[home-page]: Likewise.
* gnu/packages/man.scm (libpipeline, man-db)[home-page]: Likewise.
* gnu/packages/maths.scm (lapack, scalapack, hdf-eos5, itpp, gmsh)
(metamath, p4est, armadillo, suitesparse, atlas, lpsolve, wcalc, why3)
(frama-c)[home-page]: Likewise.
* gnu/packages/mcrypt.scm (mcrypt, libmcrypt, libmhash)[home-page]:
Likewise.
* gnu/packages/minetest.scm (minetest-advtrains)[home-page]: Likewise.
* gnu/packages/monitoring.scm (python-whisper, python-carbon)
(hostscope)[home-page]: Likewise.
* gnu/packages/mp3.scm (id3lib, libmp3splt, mp3splt, mpg321)
(lame)[home-page]: Likewise.
* gnu/packages/multiprecision.scm (mpc)[home-page]: Likewise.
* gnu/packages/music.scm (aria-maestosa, lingot, setbfree, bristol)
(portmidi, python-pyportmidi, zynaddsubfx, yoshimi, aj-snapshot)
(schismtracker, midicsv, midicsv, qmidiarp, qmidiroute, dssi, tap-lv2)
(shiru-lv2)[home-page]: Likewise.
* gnu/packages/ncurses.scm (stfl)[home-page]: Likewise.
* gnu/packages/networking.scm (lksctp-tools, mbuffer, ifstatus, bird)
(tunctl, traceroute)[home-page]: Likewise.
* gnu/packages/node-xyz.scm (node-mersenne)[home-page]: Likewise.
* gnu/packages/ntp.scm (openntpd)[home-page]: Likewise.
* gnu/packages/ocaml.scm (opam, hevea, ocaml-menhir, ocaml-piqilib)
(ocaml-graph, cubicle)[home-page]: Likewise.
* gnu/packages/opencl.scm (python-pyopencl)[home-page]: Likewise.
* gnu/packages/package-management.scm (xstow, modules)[home-page]:
Likewise.
* gnu/packages/parallel.scm (xjobs)[home-page]: Likewise.
* gnu/packages/pdf.scm (podofo, qpdf, xournal, impressive)[home-page]:
Likewise.
* gnu/packages/perl.scm (perl-math-vecstat, perltidy)[home-page]:
Likewise.
* gnu/packages/photo.scm (libpano13, enblend-enfuse, hugin)[home-page]:
Likewise.
* gnu/packages/plan9.scm (drawterm)[home-page]: Likewise.
* gnu/packages/plotutils.scm (guile-charting, ploticus)[home-page]:
Likewise.
* gnu/packages/popt.scm (argtable, popt)[home-page]: Likewise.
* gnu/packages/profiling.scm (otf2)[home-page]: Likewise.
* gnu/packages/pulseaudio.scm (pulseaudio)[home-page]: Likewise.
* gnu/packages/python-check.scm (python-mypy)[home-page]: Likewise.
* gnu/packages/python-web.scm (python-cssutils)
(python-translationstring)[home-page]: Likewise.
* gnu/packages/python-xyz.scm (python-diskcache, python-doxyqml)
(python-docutils, python-pexpect, python-importlib-resources)
(python-simplegeneric, python-urwid, python-xlrd, python-xlwt)
(python-pyasn1, python-pythondialog, python-tftpy, python-random2)
(python-arcp, python-pyopengl, python-sortedcollections)
(python-sortedcontainers, python-yapsy, python-pydispatcher)
(python-posix-ipc)[home-page]: Likewise.
* gnu/packages/qt.scm (qwt, libqglviewer, signond)[home-page]: Likewise.
* gnu/packages/radio.scm (unixcw, gnuais)[home-page]: Likewise.
* gnu/packages/raspberry-pi.scm (bcm2835)[home-page]: Likewise.
* gnu/packages/rdf.scm (clucene, rasqal, redland)[home-page]: Likewise.
* gnu/packages/regex.scm (tre)[home-page]: Likewise.
* gnu/packages/rsync.scm (librsync)[home-page]: Likewise.
* gnu/packages/ruby.scm (ruby-packnga, ruby-nokogiri, ruby-oj, ruby-ox)
(ruby-sinatra, ruby-citrus, ruby-cbor, ruby-roda)[home-page]: Likewise.
* gnu/packages/scheme.scm (scheme48, tinyscheme)[home-page]: Likewise.
* gnu/packages/screen.scm (dtach)[home-page]: Likewise.
* gnu/packages/scsi.scm (sg3-utils)[home-page]: Likewise.
* gnu/packages/sdl.scm (libmikmod, sdl-pango)[home-page]: Likewise.
* gnu/packages/shellutils.scm (hstr, rig)[home-page]: Likewise.
* gnu/packages/simulation.scm (python-dolfin-adjoint)[home-page]:
Likewise.
* gnu/packages/smalltalk.scm (smalltalk)[home-page]: Likewise.
* gnu/packages/speech.scm (espeak)[home-page]: Likewise.
* gnu/packages/stalonetray.scm (stalonetray)[home-page]: Likewise.
* gnu/packages/statistics.scm (jags, r-mass, r-class, r-lattice)
(r-matrix, r-nnet, r-spatial, r-bit, r-bit64, r-digest, r-xtable)
(python-statsmodels, r-ade4, r-latticeextra, r-rcurl, r-xml, r-mvtnorm)
(r-robustbase, r-minqa, r-fdrtool, java-jdistlib, xlispstat)[home-page]:
Likewise.
* gnu/packages/swig.scm (swig)[home-page]: Likewise.
* gnu/packages/task-management.scm (wtime)[home-page]: Likewise.
* gnu/packages/tcl.scm (itcl, tclxml, tclx)[home-page]: Likewise.
* gnu/packages/terminals.scm (libtermkey, mlterm, libvterm)
(libvterm)[home-page]: Likewise.
* gnu/packages/tex.scm (texlive-lm, texlive-lm-math, texlive-cs)
(texlive-csplain, biber, texmaker)[home-page]: Likewise.
* gnu/packages/text-editors.scm (joe)[home-page]: Likewise.
* gnu/packages/textutils.scm (drm-tools, docx2txt)[home-page]: Likewise.
* gnu/packages/tv.scm (tvtime)[home-page]: Likewise.
* gnu/packages/unicode.scm (libunibreak)[home-page]: Likewise.
* gnu/packages/upnp.scm (libupnp)[home-page]: Likewise.
* gnu/packages/version-control.scm (cvs)[home-page]: Likewise.
* gnu/packages/video.scm (transcode, libquicktime, mjpegtools, aalib)
(liba52, libmpeg2, x265, libdv, dvdauthor, aegisub, pitivi, gavl)
(dvdbackup, guvcview, video-contact-sheet)[home-page]: Likewise.
* gnu/packages/virtualization.scm (bochs)[home-page]: Likewise.
* gnu/packages/w3m.scm (w3m)[home-page]: Likewise.
* gnu/packages/web.scm (qjson, libquvi-scripts, libquvi, quvi)
(tidy-html, htmlcxx)[home-page]: Likewise.
* gnu/packages/wm.scm (evilwm, menumaker)[home-page]: Likewise.
* gnu/packages/wv.scm (wv)[home-page]: Likewise.
* gnu/packages/wxwidgets.scm (wxsvg)[home-page]: Likewise.
* gnu/packages/xdisorg.scm (mtdev, xsel)[home-page]: Likewise.
* gnu/packages/xfig.scm (xfig, transfig)[home-page]: Likewise.
* gnu/packages/xml.scm (openjade, python-pyxb, xmlstarlet, xmlrpc-c)
(opensp)[home-page]: Likewise.
* gnu/packages/xorg.scm (xf86-video-qxl)[home-page]: Likewise.

157 files changed, 614 insertions, 614 deletions

diff --git a/gnu/packages/accessibility.scm b/gnu/packages/accessibility.scm
index 21387ff0d4..3613bd8c45 100644
--- a/gnu/packages/accessibility.scm
+++ b/gnu/packages/accessibility.scm
@@ -230,7 +230,7 @@ incorporated.")
            libnotify))
     (native-inputs
      (list gettext-minimal intltool pkg-config))
-    (home-page "http://florence.sourceforge.net/")
+    (home-page "https://florence.sourceforge.net/")
     (synopsis "Extensible, scalable virtual keyboard for X11")
     (description
      "Florence is an extensible scalable virtual keyboard for X11.
diff --git a/gnu/packages/admin.scm b/gnu/packages/admin.scm
index d4cc8ca6ca..2d70a13511 100644
--- a/gnu/packages/admin.scm
+++ b/gnu/packages/admin.scm
@@ -1163,7 +1163,7 @@ ONC RPC numbers.")
        (let ((out (assoc-ref %outputs "out")))
          (list (string-append "--mandir=" out "/share/man")
                (string-append "--infodir=" out "/share/info")))))
-    (home-page "http://netcat.sourceforge.net")
+    (home-page "https://netcat.sourceforge.net")
     (synopsis "Read and write data over TCP/IP")
     (description
      "Netcat is a featured networking utility which reads and writes data
@@ -1280,7 +1280,7 @@ IPv6, proxies, and Unix sockets.")
                   "1gpvd2kjyhs18sh6sga5bk9wj8s78blfd4c0m38r0wl92jx2yv1b"))))))
     (inputs
      (list ncurses))
-    (home-page "http://nmon.sourceforge.net/")
+    (home-page "https://nmon.sourceforge.net/")
     (synopsis
      "Monitor system performance in a terminal or to a @file{.csv} log file")
     (description
diff --git a/gnu/packages/algebra.scm b/gnu/packages/algebra.scm
index 91de046a08..c3414a3f57 100644
--- a/gnu/packages/algebra.scm
+++ b/gnu/packages/algebra.scm
@@ -103,7 +103,7 @@ implement the floating point approach to complex multiplication are
 implemented.  On the other hand, these comprise asymptotically fast
 multiplication routines such as Toom–Cook and the FFT.")
    (license license:lgpl3+)
-   (home-page "http://www.multiprecision.org/mpfrcx/")))
+   (home-page "https://www.multiprecision.org/mpfrcx/")))
 
 (define-public gf2x
   (package
@@ -153,7 +153,7 @@ multiplication via floating point approximations.  It consists of libraries
 that can be called from within a C program and of executable command
 line applications.")
    (license license:gpl3+)
-   (home-page "http://www.multiprecision.org/cm/")))
+   (home-page "https://www.multiprecision.org/cm/")))
 
 (define-public fplll
   (package
@@ -464,7 +464,7 @@ GCDs, factoring, solving linear systems, and evaluating special
 functions.  In addition, FLINT provides various low-level routines for
 fast arithmetic.")
    (license license:lgpl2.1+)
-   (home-page "http://flintlib.org/")
+   (home-page "https://flintlib.org/")
    (properties
     '((release-monitoring-url . "http://flintlib.org/downloads.html")))))
 
@@ -768,7 +768,7 @@ a C program.")
          ;; different machine.
          "ax_cv_c_flags__mtune_native=no")))
     (native-inputs (list perl))
-    (home-page "http://fftw.org")
+    (home-page "https://fftw.org")
     (synopsis "Computing the discrete Fourier transform")
     (description
      "FFTW is a C subroutine library for computing the discrete Fourier
@@ -1776,7 +1776,7 @@ no more than about 20 bits long).")
             "0n8gj5iylfagdbaqirpykb01a9difsy4zl6qq55f0ghvazxqdvmn"))))
     (properties `((upstream-name . "dtt")))
     (build-system r-build-system)
-    (home-page "http://www.r-project.org")
+    (home-page "https://www.r-project.org")
     (synopsis "Discrete Trigonometric Transforms")
     (description
       "This package provides functions for 1D and 2D Discrete Cosine Transform
diff --git a/gnu/packages/apr.scm b/gnu/packages/apr.scm
index 3b4968089b..aedddd8644 100644
--- a/gnu/packages/apr.scm
+++ b/gnu/packages/apr.scm
@@ -49,7 +49,7 @@
      '(#:parallel-build? #f
        #:parallel-tests? #f))
     (inputs (list perl libltdl))
-    (home-page "http://apr.apache.org/")
+    (home-page "https://apr.apache.org/")
     (synopsis "The Apache Portable Runtime Library")
     (description
      "The mission of the Apache Portable Runtime (APR) project is to create and
@@ -96,7 +96,7 @@ around or take advantage of platform-specific deficiencies or features.")
        ;; to run it.  See
        ;; <http://lists.gnu.org/archive/html/guix-devel/2014-03/msg00261.html>.
        #:parallel-tests? #f))
-    (home-page "http://apr.apache.org/")
+    (home-page "https://apr.apache.org/")
     (synopsis "One of the Apache Portable Runtime Library companions")
     (description
      "APR-util provides a number of helpful abstractions on top of APR.")
diff --git a/gnu/packages/aspell.scm b/gnu/packages/aspell.scm
index 18d19027a4..0f9a07895d 100644
--- a/gnu/packages/aspell.scm
+++ b/gnu/packages/aspell.scm
@@ -310,7 +310,7 @@ dictionaries, including personal ones.")
                              "aspell6-it-" version ".tar.bz2"))
          (hash (content-hash sha256))))
        (home-page
-        "http://linguistico.sourceforge.net/pages/dizionario_italiano.html"))))
+        "https://linguistico.sourceforge.net/pages/dizionario_italiano.html"))))
 
 (define-public aspell-dict-mi
   (aspell-dictionary "mi" "Maori"
diff --git a/gnu/packages/astronomy.scm b/gnu/packages/astronomy.scm
index 5cee981671..02d6dc0aa1 100644
--- a/gnu/packages/astronomy.scm
+++ b/gnu/packages/astronomy.scm
@@ -350,7 +350,7 @@ wide set of telescopes.")
            python
            python-numpy
            wcslib))
-    (home-page "http://casacore.github.io/casacore/")
+    (home-page "https://casacore.github.io/casacore/")
     (synopsis "Suite of C++ libraries for radio astronomy data processing")
     (description
      "The casacore package contains the core libraries of the old
@@ -654,7 +654,7 @@ programs for the manipulation and analysis of astronomical data.")
     (inputs
      `(("openblas" ,openblas)
        ("fftw" ,fftwf)))
-    (home-page "http://www.astromatic.net/software/sextractor")
+    (home-page "https://www.astromatic.net/software/sextractor")
     (synopsis "Extract catalogs of sources from astronomical images")
     (description
      "SExtractor is a program that builds a catalogue of objects from an
@@ -1708,7 +1708,7 @@ elevation, solar azimuth, rahukaalam, and the phases of the moon.")
     (synopsis "Celestial mechanics, astrometry and astrodynamics library")
     (description "Libnova is a general purpose, double precision, Celestial
 Mechanics, Astrometry and Astrodynamics library.")
-    (home-page "http://libnova.sourceforge.net/")
+    (home-page "https://libnova.sourceforge.net/")
     (license (list license:lgpl2.0+
                    license:gpl2+)))) ; examples/transforms.c & lntest/*.c
 
@@ -1914,7 +1914,7 @@ on FITS files:
                   (string-append "CPPFLAGS=-I" netpbm "/include/netpbm")
                   ;; no nasa jpl cspice support
                   "--without-cspice" )))))
-    (home-page "http://xplanet.sourceforge.net/")
+    (home-page "https://xplanet.sourceforge.net/")
     (synopsis "Planetary body renderer")
     (description
      "Xplanet renders an image of a planet into an X window or file.
diff --git a/gnu/packages/audio.scm b/gnu/packages/audio.scm
index 124593c67b..ffb972175e 100644
--- a/gnu/packages/audio.scm
+++ b/gnu/packages/audio.scm
@@ -502,7 +502,7 @@ by MusicIP.")
     (description "LibTiMidity is a MIDI to WAVE converter library that uses
 Gravis Ultrasound-compatible patch files to generate digital audio data from
 General MIDI files.")
-    (home-page "http://libtimidity.sourceforge.net/")
+    (home-page "https://libtimidity.sourceforge.net/")
     (license
      ;; This project is dual-licensed.
      ;; Either of the following licenses can be exercised.
@@ -573,7 +573,7 @@ implementation of Adaptive Multi Rate Narrowband and Wideband
            qtbase-5))
     (native-inputs
      (list pkg-config qttools-5))
-    (home-page "http://alsamodular.sourceforge.net/")
+    (home-page "https://alsamodular.sourceforge.net/")
     (synopsis "Realtime modular synthesizer and effect processor")
     (description
      "AlsaModularSynth is a digital implementation of a classical analog
@@ -1132,7 +1132,7 @@ formant warp.")
        (list gtkmm-2 jack-2 lvtk))
       (native-inputs
        (list pkg-config))
-      (home-page "http://ll-plugins.nongnu.org/azr3/")
+      (home-page "https://ll-plugins.nongnu.org/azr3/")
       (synopsis "Tonewheel organ synthesizer")
       (description
        "AZR-3 is a port of the free VST plugin AZR-3.  It is a tonewheel organ
@@ -1488,7 +1488,7 @@ formats used to store information about DJ record libraries.")
            bison
            sed
            grep))
-    (home-page "http://taopm.sourceforge.net/")
+    (home-page "https://taopm.sourceforge.net/")
     (synopsis "Sound Synthesis with Physical Models")
     (description "Tao is a software package for sound synthesis using physical
 models.  It provides a virtual acoustic material constructed from masses and
@@ -2159,7 +2159,7 @@ also play midifiles using a Soundfont.")
                      #t))))
     (native-inputs
      (list tar bzip2))
-    (home-page "http://freepats.zenvoid.org")
+    (home-page "https://freepats.zenvoid.org")
     (synopsis "GUS compatible patches for MIDI players")
     (description
      "FreePats is a project to create a free and open set of GUS compatible
@@ -2313,7 +2313,7 @@ auto-wah.")
            libsndfile
            libsamplerate
            zlib))
-    (home-page "http://rakarrack.sourceforge.net/")
+    (home-page "https://rakarrack.sourceforge.net/")
     (synopsis "Audio effects processor")
     (description
      "Rakarrack is a richly featured multi-effects processor emulating a
@@ -2752,7 +2752,7 @@ with applications that support them (e.g. PulseAudio).")
      `(;; liblo test FAILED
        ;; liblo server error 19 in setsockopt(IP_ADD_MEMBERSHIP): No such device
        #:tests? #f))
-    (home-page "http://liblo.sourceforge.net")
+    (home-page "https://liblo.sourceforge.net")
     (synopsis "Implementation of the Open Sound Control protocol")
     (description
      "liblo is a lightweight library that provides an easy to use
@@ -3522,7 +3522,7 @@ using Guix System.")
      (list pkg-config))
     (inputs
      (list libogg libtheora libvorbis speex))
-    (home-page "http://idjc.sourceforge.net/")
+    (home-page "https://idjc.sourceforge.net/")
     (synopsis "Broadcast streaming library with IDJC extensions")
     (description "This package provides libshout plus IDJC extensions.")
     ;; GNU Library (not Lesser) General Public License.
@@ -3758,7 +3758,7 @@ for loudness normalisation.")
            freepats))
     (native-inputs
      (list pkg-config))
-    (home-page "http://timidity.sourceforge.net/")
+    (home-page "https://timidity.sourceforge.net/")
     (synopsis "Software synthesizer for playing MIDI files")
     (description
      "TiMidity++ is a software synthesizer.  It can play MIDI files by
@@ -3843,7 +3843,7 @@ analysis plugins or audio feature extraction plugins.")
                                                "/ar-lib"))
              "ar-lib")
             #t)))))
-    (home-page "http://sbsms.sourceforge.net/")
+    (home-page "https://sbsms.sourceforge.net/")
     (synopsis "Library for time stretching and pitch scaling of audio")
     (description
      "SBSMS (Subband Sinusoidal Modeling Synthesis) is software for time
@@ -3921,7 +3921,7 @@ encode and decode wavpack files.")
                (base32
                 "1pnri98a603xk47smnxr551svbmgbzcw018mq1k6srbrq6kaaz25"))))
     (build-system gnu-build-system)
-    (home-page "http://modplug-xmms.sourceforge.net/")
+    (home-page "https://modplug-xmms.sourceforge.net/")
     (synopsis "Mod file playing library")
     (description
      "Libmodplug renders mod music files as raw audio data, for playing or
@@ -3942,7 +3942,7 @@ surround and reverb.")
                (base32
                 "1kycz4jsyvmf7ny9227b497wc7y5ligydi6fvvldmkf8hk63ad9m"))))
     (build-system gnu-build-system)
-    (home-page "http://xmp.sourceforge.net/")
+    (home-page "https://xmp.sourceforge.net/")
     (synopsis "Module player library")
     (description
      "Libxmp is a library that renders module files to PCM data.  It supports
@@ -3966,7 +3966,7 @@ Scream Tracker 3 (S3M), Fast Tracker II (XM), and Impulse Tracker (IT).")
      (list pkg-config))
     (inputs
      (list libxmp pulseaudio))
-    (home-page "http://xmp.sourceforge.net/")
+    (home-page "https://xmp.sourceforge.net/")
     (synopsis "Extended module player")
     (description
      "Xmp is a portable module player that plays over 90 mainstream and
@@ -4030,7 +4030,7 @@ control functionality, or just for playing around with the sound effects.")
            libpng
            libvorbis
            pulseaudio))
-    (home-page "http://sox.sourceforge.net")
+    (home-page "https://sox.sourceforge.net")
     (synopsis "Sound processing utility")
     (description
      "SoX (Sound eXchange) is a command line utility that can convert
@@ -4527,7 +4527,7 @@ with support for HD extensions.")
       '(modify-phases %standard-phases
          (delete 'configure))))
     (inputs (list fftw))
-    (home-page "http://drc-fir.sourceforge.net/")
+    (home-page "https://drc-fir.sourceforge.net/")
     (synopsis "Digital room correction")
     (description
      "DRC is a program used to generate correction filters for acoustic
@@ -4653,7 +4653,7 @@ code, used in @code{libtoxcore}.")
     (synopsis "GSM 06.10 lossy speech compression library")
     (description "This C library provides an encoder and a decoder for the GSM
 06.10 RPE-LTP lossy speech compression algorithm.")
-    (home-page "http://quut.com/gsm/")
+    (home-page "https://quut.com/gsm/")
     (license (license:non-copyleft "file://COPYRIGHT"))))
 
 (define-public python-pyalsaaudio
@@ -5172,7 +5172,7 @@ developing fully accurate DirectX Audio runtime libraries.")
      (list alsa-lib gtk+-2 libsndfile portaudio))
     (native-inputs
      (list pkg-config))
-    (home-page "http://gnaural.sourceforge.net/")
+    (home-page "https://gnaural.sourceforge.net/")
     (synopsis "Binaural beat synthesizer")
     (description "Gnaural is a programmable auditory binaural beat synthesizer
 intended to be used for brainwave entrainment.  Gnaural supports creation of
@@ -6162,7 +6162,7 @@ managed by PipeWire.")
     (build-system gnu-build-system)
     (native-inputs (list pkg-config))
     (inputs (list faad2 glib libmad libvorbis))
-    (home-page "http://streamripper.sourceforge.net")
+    (home-page "https://streamripper.sourceforge.net")
     (synopsis "Record audio streams to your hard drive")
     (description "Streamripper records shoutcast-compatible
 streams.  For shoutcast style streams it finds the “meta data” or track
diff --git a/gnu/packages/authentication.scm b/gnu/packages/authentication.scm
index d9dd6fac3d..a73f2cbc14 100644
--- a/gnu/packages/authentication.scm
+++ b/gnu/packages/authentication.scm
@@ -161,7 +161,7 @@ YubiKey into your existing user authentication infrastructure.")
      (list pkg-config))
     (inputs
      (list linux-pam))
-    (home-page "http://pamtester.sourceforge.net/")
+    (home-page "https://pamtester.sourceforge.net/")
     (synopsis "Utility for testing pluggable authentication modules (PAM) facility")
     (description
      "Pamtester is a tiny utility program to test the pluggable authentication
diff --git a/gnu/packages/backup.scm b/gnu/packages/backup.scm
index 8a25d0d116..7be0c813bb 100644
--- a/gnu/packages/backup.scm
+++ b/gnu/packages/backup.scm
@@ -1370,7 +1370,7 @@ archives.")
     (native-inputs (list intltool pkg-config))
     (inputs (list gtk+))
     (propagated-inputs (list rsync))
-    (home-page "http://www.opbyte.it/grsync/")
+    (home-page "https://www.opbyte.it/grsync/")
     (synopsis "GTK frontend for rsync")
     (description
      "Grsync is a simple graphical interface using GTK for the @command{rsync}
diff --git a/gnu/packages/bioconductor.scm b/gnu/packages/bioconductor.scm
index 4b5ec7db28..bc3bd8c930 100644
--- a/gnu/packages/bioconductor.scm
+++ b/gnu/packages/bioconductor.scm
@@ -4747,7 +4747,7 @@ mapping.")
            r-stringr))
     (native-inputs
      (list r-knitr))
-    (home-page "http://renozao.github.io/NMF")
+    (home-page "https://renozao.github.io/NMF")
     (synopsis "Algorithms and framework for nonnegative matrix factorization")
     (description
      "This package provides a framework to perform Non-negative Matrix
@@ -5898,7 +5898,7 @@ global-scaling and full-quantile normalization.")
     (build-system r-build-system)
     (propagated-inputs
      (list r-limma r-locfit r-rcpp))
-    (home-page "http://bioinf.wehi.edu.au/edgeR")
+    (home-page "https://bioinf.wehi.edu.au/edgeR")
     (synopsis "EdgeR does empirical analysis of digital gene expression data")
     (description "This package can do differential expression analysis of
 RNA-seq expression profiles with biological replication.  It implements a range
@@ -6525,7 +6525,7 @@ Binomial data via estimation of latent structure in the natural parameter.")
                (base32
                 "1jy75nbkhl0kgv4gw88acx58r9f1kywrd36405x6g05xy05bprma"))))
     (build-system r-build-system)
-    (home-page "http://bioinf.wehi.edu.au/limma")
+    (home-page "https://bioinf.wehi.edu.au/limma")
     (synopsis "Package for linear models for microarray and RNA-seq data")
     (description "This package can be used for the analysis of gene expression
 studies, especially the use of linear models for analysing designed experiments
@@ -9735,7 +9735,7 @@ in omics data.")
     (build-system r-build-system)
     (propagated-inputs
      (list r-biobase r-mass))
-    (home-page "http://www.genopolis.it")
+    (home-page "https://www.genopolis.it")
     (synopsis "Detect differential expression in microarray and proteomics datasets")
     (description
      "The Power Law Global Error Model (PLGEM) has been shown to faithfully
diff --git a/gnu/packages/bioinformatics.scm b/gnu/packages/bioinformatics.scm
index 9470e6eb1a..b5d132749f 100644
--- a/gnu/packages/bioinformatics.scm
+++ b/gnu/packages/bioinformatics.scm
@@ -1576,7 +1576,7 @@ use-case, we encourage users to compose functions to achieve their goals.")
            python-scipy))
     (native-inputs
      (list python-cython python-pytest python-pytest-cov python-nose))
-    (home-page "http://www.biom-format.org")
+    (home-page "https://www.biom-format.org")
     (synopsis "Biological Observation Matrix (BIOM) format utilities")
     (description
      "The BIOM file format is designed to be a general-use format for
@@ -2503,7 +2503,7 @@ errors at the end of reads.")
        ("python" ,python-wrapper)))
     (native-inputs
      (list perl perl-clone perl-test-deep perl-test-simple))
-    (home-page "http://bowtie-bio.sourceforge.net/bowtie2/index.shtml")
+    (home-page "https://bowtie-bio.sourceforge.net/bowtie2/index.shtml")
     (synopsis "Fast and sensitive nucleotide sequence read aligner")
     (description
      "Bowtie 2 is a fast and memory-efficient tool for aligning sequencing
@@ -2545,7 +2545,7 @@ gapped, local, and paired-end alignment modes.")
     (inputs
      (list python-wrapper tbb-2020 zlib))
     (supported-systems '("x86_64-linux"))
-    (home-page "http://bowtie-bio.sourceforge.net/index.shtml")
+    (home-page "https://bowtie-bio.sourceforge.net/index.shtml")
     (synopsis "Fast aligner for short nucleotide sequence reads")
     (description
      "Bowtie is a fast, memory-efficient short read aligner.  It aligns short
@@ -2666,7 +2666,7 @@ splice junctions between exons.")
     ;; Non-portable SSE instructions are used so building fails on platforms
     ;; other than x86_64.
     (supported-systems '("x86_64-linux"))
-    (home-page "http://bio-bwa.sourceforge.net/")
+    (home-page "https://bio-bwa.sourceforge.net/")
     (synopsis "Burrows-Wheeler sequence aligner")
     (description
      "BWA is a software package for mapping low-divergent sequences against a
@@ -3259,7 +3259,7 @@ time.")
            zlib))
     (native-inputs
      (list python-cython python-nose))
-    (home-page "http://crossmap.sourceforge.net/")
+    (home-page "https://crossmap.sourceforge.net/")
     (synopsis "Convert genome coordinates between assemblies")
     (description
      "CrossMap is a program for conversion of genome coordinates or annotation
@@ -4883,7 +4883,7 @@ high-throughput sequencing (HTS) assays")
        ("java-xz" ,java-xz)))
     (native-inputs
      (list java-testng))
-    (home-page "http://samtools.github.io/htsjdk/")
+    (home-page "https://samtools.github.io/htsjdk/")
     (synopsis "Java API for high-throughput sequencing data (HTS) formats")
     (description
      "HTSJDK is an implementation of a unified Java library for accessing
@@ -4926,7 +4926,7 @@ manipulating HTS data.")
        ("java-xz" ,java-xz)))
     (native-inputs
      (list java-junit))
-    (home-page "http://samtools.github.io/htsjdk/")
+    (home-page "https://samtools.github.io/htsjdk/")
     (synopsis "Java API for high-throughput sequencing data (HTS) formats")
     (description
      "HTSJDK is an implementation of a unified Java library for accessing
@@ -5031,7 +5031,7 @@ manipulating HTS data.")
      (list java-htsjdk java-guava))
     (native-inputs
      (list java-testng))
-    (home-page "http://broadinstitute.github.io/picard/")
+    (home-page "https://broadinstitute.github.io/picard/")
     (synopsis "Tools for manipulating high-throughput sequencing data and formats")
     (description "Picard is a set of Java command line tools for manipulating
 high-throughput sequencing (HTS) data and formats.  Picard is implemented
@@ -5120,7 +5120,7 @@ Class-Path: /~a \
      (list java-htsjdk-2.10.1))
     (native-inputs
      (list java-testng java-guava))
-    (home-page "http://broadinstitute.github.io/picard/")
+    (home-page "https://broadinstitute.github.io/picard/")
     (synopsis "Tools for manipulating high-throughput sequencing data and formats")
     (description "Picard is a set of Java command line tools for manipulating
 high-throughput sequencing (HTS) data and formats.  Picard is implemented
@@ -5719,7 +5719,7 @@ data.")
            tar
            wget
            zlib))
-    (home-page "http://kaiju.binf.ku.dk/")
+    (home-page "https://kaiju.binf.ku.dk/")
     (synopsis "Fast and sensitive taxonomic classification for metagenomics")
     (description "Kaiju is a program for sensitive taxonomic classification
 of high-throughput sequencing reads from metagenomic whole genome sequencing
@@ -6235,7 +6235,7 @@ predicts the locations of structural units in the sequences.")
        ("openblas" ,openblas)))
     (native-inputs
      (list which))
-    (home-page "http://www.bioinf.uni-leipzig.de/Software/proteinortho")
+    (home-page "https://www.bioinf.uni-leipzig.de/Software/proteinortho")
     (synopsis "Detect orthologous genes across species")
     (description
      "Proteinortho is a tool to detect orthologous genes across different
@@ -6510,7 +6510,7 @@ phylogenies.")
                            "rsem-run-prsem-testing-procedure"))))))))
     (inputs
      (list boost r-minimal perl htslib-1.3 zlib))
-    (home-page "http://deweylab.biostat.wisc.edu/rsem/")
+    (home-page "https://deweylab.biostat.wisc.edu/rsem/")
     (synopsis "Estimate gene expression levels from RNA-Seq data")
     (description
      "RSEM is a software package for estimating gene and isoform expression
@@ -6545,7 +6545,7 @@ BAM and Wiggle files in both transcript-coordinate and genomic-coordinate.")
            zlib))
     (native-inputs
      (list python-nose))
-    (home-page "http://rseqc.sourceforge.net/")
+    (home-page "https://rseqc.sourceforge.net/")
     (synopsis "RNA-seq quality control package")
     (description
      "RSeQC provides a number of modules that can comprehensively evaluate
@@ -6605,7 +6605,7 @@ distribution, coverage uniformity, strand specificity, etc.")
          ("readline" ,readline)))
       (native-inputs
        (list pkg-config))
-      (home-page "http://seek.princeton.edu")
+      (home-page "https://seek.princeton.edu")
       (synopsis "Gene co-expression search engine")
       (description
        "SEEK is a computational gene co-expression search engine.  SEEK provides
@@ -6646,7 +6646,7 @@ to the user's query of interest.")
     (native-inputs (list pkg-config))
     (inputs
      (list htslib ncurses perl python zlib))
-    (home-page "http://samtools.sourceforge.net")
+    (home-page "https://samtools.sourceforge.net")
     (synopsis "Utilities to efficiently manipulate nucleotide sequence alignments")
     (description
      "Samtools implements various utilities for post-processing nucleotide
@@ -7724,7 +7724,7 @@ optionally compressed by gzip.")
                (install-file "SNAPCommand" bin)))))))
     (native-inputs
      (list zlib))
-    (home-page "http://snap.cs.berkeley.edu/")
+    (home-page "https://snap.cs.berkeley.edu/")
     (synopsis "Short read DNA sequence aligner")
     (description
      "SNAP is a fast and accurate aligner for short DNA reads.  It is
@@ -7991,7 +7991,7 @@ sequences.")
          ;; no "configure" script
          (delete 'configure))))
     (inputs (list zlib))
-    (home-page "http://subread.sourceforge.net/")
+    (home-page "https://subread.sourceforge.net/")
     (synopsis "Tool kit for processing next-gen sequencing data")
     (description
      "The subread package contains the following tools: subread aligner, a
@@ -8038,7 +8038,7 @@ against local background noises.")
                (install-file "stringtie" bin)))))))
     (inputs
      (list bzip2 htslib-for-stringtie libdeflate zlib))
-    (home-page "http://ccb.jhu.edu/software/stringtie/")
+    (home-page "https://ccb.jhu.edu/software/stringtie/")
     (synopsis "Transcript assembly and quantification for RNA-Seq data")
     (description
      "StringTie is a fast and efficient assembler of RNA-Seq sequence
@@ -9152,7 +9152,7 @@ of contact distributions around selected landmarks.")
                (base32
                 "1hsx6qgwr0i67fhy9257zj7s0ppncph2hjgbia5nn6nfmj0ax6l9"))))
     (build-system r-build-system)
-    (home-page "http://centipede.uchicago.edu/")
+    (home-page "https://centipede.uchicago.edu/")
     (synopsis "Predict transcription factor binding sites")
     (description
      "CENTIPEDE applies a hierarchical Bayesian mixture model to infer regions
@@ -9390,7 +9390,7 @@ experience substantial biological insertions and deletions.")
            perl-getopt-long
            perl-json
            perl-statistics-pca))
-    (home-page "http://prinseq.sourceforge.net/")
+    (home-page "https://prinseq.sourceforge.net/")
     (synopsis "Preprocess sequence data in FASTA or FASTQ formats")
     (description
      "PRINSEQ is a bioinformatics tool to help you preprocess your genomic or
@@ -9875,7 +9875,7 @@ AM_CONDITIONAL(AMPNG, true)"))
            zlib))
     (native-inputs
      (list autoconf automake libtool pkg-config))
-    (home-page "http://emboss.sourceforge.net")
+    (home-page "https://emboss.sourceforge.net")
     (synopsis "Molecular biology analysis suite")
     (description "EMBOSS is the \"European Molecular Biology Open Software
 Suite\".  EMBOSS is an analysis package specially developed for the needs of
@@ -10552,7 +10552,7 @@ remove biased methylation positions for RRBS sequence files.")
                (for-each (lambda (file)
                            (install-file file target))
                          (find-files "../exe" ".*"))))))))
-    (home-page "http://evolution.genetics.washington.edu/phylip/")
+    (home-page "https://evolution.genetics.washington.edu/phylip/")
     (synopsis "Tools for inferring phylogenies")
     (description "PHYLIP (the PHYLogeny Inference Package) is a package of
 programs for inferring phylogenies (evolutionary trees).")
@@ -16831,7 +16831,7 @@ The output is in SAM format.")
      (list libxml2))
     (native-inputs
      (list check swig))
-    (home-page "http://sbml.org/Software/libSBML")
+    (home-page "https://sbml.org/Software/libSBML")
     (synopsis "Process SBML files and data streams")
     (description "LibSBML is a library to help you read, write, manipulate,
 translate, and validate SBML files and data streams.  The @dfn{Systems Biology
diff --git a/gnu/packages/build-tools.scm b/gnu/packages/build-tools.scm
index 00b8f8caf3..28ab77bbb4 100644
--- a/gnu/packages/build-tools.scm
+++ b/gnu/packages/build-tools.scm
@@ -661,7 +661,7 @@ software.")
            sqlite))
     (native-inputs
      (list pkg-config))
-    (home-page "http://gittup.org/tup/")
+    (home-page "https://gittup.org/tup/")
     (synopsis "Fast build system that's hard to get wrong")
     (description "Tup is a generic build system based on a directed acyclic
 graphs of commands to be executed.  Tup instruments your build to detect the
diff --git a/gnu/packages/cdrom.scm b/gnu/packages/cdrom.scm
index b544f0e59d..cfb2b6b686 100644
--- a/gnu/packages/cdrom.scm
+++ b/gnu/packages/cdrom.scm
@@ -87,7 +87,7 @@
                "0fr21a7vprdyy1bq6s99m0x420c9jm5fipsd63pqv8qyfkhhxkim"))))
     (build-system gnu-build-system)
     (arguments '(#:tests? #f))      ; tests rely on access to external servers
-    (home-page "http://libcddb.sourceforge.net/")
+    (home-page "https://libcddb.sourceforge.net/")
     (synopsis "C library to access data on a CDDB server")
     (description
      "Libcddb is a C library to access data on a CDDB server (freedb.org).  It
@@ -281,7 +281,7 @@ reconstruction capability.")
      (list autoconf automake pkg-config))
     (inputs
      (list ao lame libmad libvorbis))
-    (home-page "http://cdrdao.sourceforge.net")
+    (home-page "https://cdrdao.sourceforge.net")
     (synopsis "Read and write CDs in disk-at-once mode")
     (description "cdrdao records audio or data CDs in disk-at-once (DAO) mode,
 based on a textual description of the contents.  This mode writes the complete
@@ -350,7 +350,7 @@ CD's, DVD's or Blue Ray discs.  The most important components are
 @command{cdrecord}, a burning program, @command{cdda2wav}, a CD audio ripper
 which uses libparanoia, and @command{mkisofs}, which can create various disc
 images.")
-   (home-page "http://cdrtools.sourceforge.net/private/cdrecord.html")
+   (home-page "https://cdrtools.sourceforge.net/private/cdrecord.html")
 
    ;; mkisofs is GPL, the other programs are CDDL.
    (license (list cddl1.0 gpl2))))
@@ -573,7 +573,7 @@ the data.")
   (package
     (name "cd-discid")
     (version "1.4")
-    (home-page "http://linukz.org/cd-discid.shtml")
+    (home-page "https://linukz.org/cd-discid.shtml")
     (source (origin
               (method url-fetch)
               (uri (string-append "http://linukz.org/download/cd-discid-"
diff --git a/gnu/packages/check.scm b/gnu/packages/check.scm
index f6553a27bf..0866558ac2 100644
--- a/gnu/packages/check.scm
+++ b/gnu/packages/check.scm
@@ -355,7 +355,7 @@ testing of Unix command lines.")
                      (lambda _ (invoke "autoreconf" "-vfi"))))))
     (native-inputs
      (list automake autoconf libtool))
-    (home-page "http://cunit.sourceforge.net/")
+    (home-page "https://cunit.sourceforge.net/")
     (synopsis "Automated testing framework for C")
     (description
      "CUnit is a lightweight system for writing, administering, and running
@@ -1119,7 +1119,7 @@ available via the @code{unittest.mock} module.")
                   (add-after 'unpack 'invoke-2to3
                     (lambda _
                       (invoke "2to3" "-w" "."))))))
-    (home-page "http://readthedocs.org/docs/nose/")
+    (home-page "https://readthedocs.org/docs/nose/")
     (synopsis "Python testing library")
     (description
      "Nose extends the unittest library to make testing easier.")
@@ -3101,7 +3101,7 @@ retried.")
                     (lambda* (#:key inputs outputs #:allow-other-keys)
                       (add-installed-pythonpath inputs outputs)
                       (invoke "pytest" "-vv"))))))
-    (home-page "http://hamcrest.org/")
+    (home-page "https://hamcrest.org/")
     (synopsis "Hamcrest matchers for Python")
     (description "PyHamcrest is a framework for writing matcher objects,
 allowing you to declaratively define \"match\" rules.")
diff --git a/gnu/packages/chemistry.scm b/gnu/packages/chemistry.scm
index 529d013f3d..3c6d47464a 100644
--- a/gnu/packages/chemistry.scm
+++ b/gnu/packages/chemistry.scm
@@ -424,7 +424,7 @@ stored with user-specified precision.")
            perl
            tinyxml2
            tng))
-    (home-page "http://www.gromacs.org/")
+    (home-page "https://www.gromacs.org/")
     (synopsis "Molecular dynamics software package")
     (description "GROMACS is a versatile package to perform molecular dynamics,
 i.e. simulate the Newtonian equations of motion for systems with hundreds to
diff --git a/gnu/packages/chez.scm b/gnu/packages/chez.scm
index 0b3c813658..c6420a980e 100644
--- a/gnu/packages/chez.scm
+++ b/gnu/packages/chez.scm
@@ -1238,7 +1238,7 @@ syntax, with various aliases for commonly used patterns.")
                (replace 'install
                  (lambda* (#:key (make-flags '()) #:allow-other-keys)
                    (apply invoke "make" "chez-install" make-flags))))))
-    (home-page "http://synthcode.com/scheme/fmt")
+    (home-page "https://synthcode.com/scheme/fmt")
     (synopsis "Combinator formatting library for Chez Scheme")
     (description "This package provides a library of procedures for
 formatting Scheme objects to text in various ways, and for easily
diff --git a/gnu/packages/code.scm b/gnu/packages/code.scm
index e8bc0e4307..88c251f770 100644
--- a/gnu/packages/code.scm
+++ b/gnu/packages/code.scm
@@ -580,7 +580,7 @@ stack traces.")
                  `("PERL5LIB" ":" prefix (,(getenv "PERL5LIB")))))
              #t)))))
     (inputs (list perl perl-io-compress perl-json))
-    (home-page "http://ltp.sourceforge.net/coverage/lcov.php")
+    (home-page "https://ltp.sourceforge.net/coverage/lcov.php")
     (synopsis "Code coverage tool that enhances GNU gcov")
     (description "LCOV is an extension of @command{gcov}, a tool part of the
 GNU@tie{}Binutils, which provides information about what parts of a program
@@ -809,7 +809,7 @@ independent targets.")
                            (install-file l etcdir))
                          (find-files "etc" "\\.cfg$")))
              #t)))))
-    (home-page "http://uncrustify.sourceforge.net/")
+    (home-page "https://uncrustify.sourceforge.net/")
     (synopsis "Code formatter for C and other related languages")
     (description
      "Beautify source code in many languages of the C family (C, C++, C#,
@@ -875,7 +875,7 @@ Objective@tie{}C, D, Java, Pawn, and Vala).  Features:
                   (make-so-link sofile "(\\.[0-9]){2}$")) ;; link .so.3
                 (find-files libdir "lib.*\\.so\\..*")))
              #t)))))
-    (home-page "http://astyle.sourceforge.net/")
+    (home-page "https://astyle.sourceforge.net/")
     (synopsis "Source code indenter, formatter, and beautifier")
     (description
      "Artistic Style is a source code indenter, formatter, and beautifier for
@@ -1076,7 +1076,7 @@ Readline library.")
        ;; on SysV curses.
        (list (string-append "--with-ncurses="
                             (assoc-ref %build-inputs "ncurses")))))
-    (home-page "http://cscope.sourceforge.net")
+    (home-page "https://cscope.sourceforge.net")
     (synopsis "Tool for browsing source code")
     (description
      "Cscope is a text screen based source browsing tool. Although it is
diff --git a/gnu/packages/compression.scm b/gnu/packages/compression.scm
index 42766a707a..0d14078fb7 100644
--- a/gnu/packages/compression.scm
+++ b/gnu/packages/compression.scm
@@ -1400,7 +1400,7 @@ for most inputs, but the resulting compressed files are anywhere from 20% to
             ((target-x86-32?)
              (list nasm))
             (else '())))
-    (home-page "http://p7zip.sourceforge.net/")
+    (home-page "https://p7zip.sourceforge.net/")
     (synopsis "Command-line file archiver with high compression ratio")
     (description "p7zip is a command-line port of 7-Zip, a file archiver that
 handles the 7z format which features very high compression ratios.")
diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index c7a81b96eb..c80e98134a 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -534,7 +534,7 @@ by Luis Torgo, published by CRC Press.")
          "05mv6xhm15b0mq9kzyiblkb14bdqmjrwl64ghdk66il0w8i7p6nh"))))
     (properties `((upstream-name . "emdist")))
     (build-system r-build-system)
-    (home-page "http://www.rforge.net/emd")
+    (home-page "https://www.rforge.net/emd")
     (synopsis "Earth mover's distance")
     (description
      "This package provides tools to calculate the Earth Mover's
@@ -919,7 +919,7 @@ can read and write both the metadata and the cell data in a Sheet.")
     (build-system r-build-system)
     (inputs (list proj-7 zlib))
     (native-inputs (list pkg-config))
-    (home-page "http://www.rforge.net/proj4/")
+    (home-page "https://www.rforge.net/proj4/")
     (synopsis "Simple interface to the PROJ.4 cartographic projections library")
     (description
      "This package provides a simple interface to lat/long projection and
@@ -1484,7 +1484,7 @@ proposals for count data.")
     (build-system r-build-system)
     (propagated-inputs
      (list r-lattice))
-    (home-page "http://zoo.R-Forge.R-project.org/")
+    (home-page "https://zoo.R-Forge.R-project.org/")
     (synopsis "S3 infrastructure for regular and irregular time series")
     (description "This package contains an S3 class with methods for totally
 ordered indexed observations.  It is particularly aimed at irregular time
@@ -1584,7 +1584,7 @@ in good performances with large files.")
           r-tidyselect))
    (native-inputs
     (list r-knitr))
-   (home-page "http://corybrunson.github.io/ggalluvial/")
+   (home-page "https://corybrunson.github.io/ggalluvial/")
    (synopsis "Alluvial plots for ggplot2")
    (description "This package provides alluvial plots for @code{ggplot2}.
 Alluvial plots use variable-width ribbons and stacked bar plots to represent
@@ -1972,7 +1972,7 @@ higher.")
     (properties `((upstream-name . "OrgMassSpecR")))
     (build-system r-build-system)
     (native-inputs (list r-knitr))
-    (home-page "http://OrgMassSpec.github.io/")
+    (home-page "https://OrgMassSpec.github.io/")
     (synopsis "Organic or biological mass spectrometry data analysis")
     (description
      "This package @code{OrgMassSpecR} is an extension of the @code{R}
@@ -2194,7 +2194,7 @@ with default R plot functions.")
      (list r-colorspace r-scatterplot3d))
     (native-inputs
      (list r-knitr))
-    (home-page "http://oompa.r-forge.r-project.org/")
+    (home-page "https://oompa.r-forge.r-project.org/")
     (synopsis "Qualitative palettes with many colors")
     (description
      "This package provides tools for creating, viewing, and assessing
@@ -4768,7 +4768,7 @@ initiative to bring PASSTEC 2000 functionalities to R.")
           r-mvtnorm
           r-rpart
           r-survival))
-   (home-page "http://partykit.R-Forge.R-project.org/partykit")
+   (home-page "https://partykit.R-Forge.R-project.org/partykit")
    (synopsis "Toolkit for recursive partytioning")
    (description
     "This package provides a toolkit with infrastructure for representing,
@@ -4937,7 +4937,7 @@ value for each cluster in a dendrogram.")
        (sha256
         (base32 "0inmnmi0pqmbqnl00d5yal1bmd7awigxd7sgzjsil9c1k55f4r8y"))))
     (build-system r-build-system)
-    (home-page "http://www.rcpp.org")
+    (home-page "https://www.rcpp.org")
     (synopsis "Seamless R and C++ integration")
     (description
      "The Rcpp package provides R functions as well as C++ classes which offer
@@ -5370,7 +5370,7 @@ any subsequent lookup as it keeps the hash table in memory.")
          "0krwxq4985x3n5mzx8i9smwpkd5sifbfgy9z7ikwk84734km683j"))))
     (build-system r-build-system)
     (propagated-inputs (list r-bit))
-    (home-page "http://ff.r-forge.r-project.org/")
+    (home-page "https://ff.r-forge.r-project.org/")
     (synopsis "Memory-efficient storage of large data on disk and access functions")
     (description
      "This package provides data structures that are stored on disk but
@@ -6046,7 +6046,7 @@ classes in the @code{stats4} package.")
     (build-system r-build-system)
     (propagated-inputs
      (list r-bbmle r-coda r-lattice r-mass r-plyr))
-    (home-page "http://www.math.mcmaster.ca/bolker/emdbook")
+    (home-page "https://www.math.mcmaster.ca/bolker/emdbook")
     (synopsis "Support functions and data for \"Ecological Models and Data\"")
     (description
      "This package provides auxiliary functions and data sets for \"Ecological
@@ -6125,7 +6125,7 @@ functions from LINPACK.")
      (list r-mass r-survival))
     (native-inputs
      (list r-knitr))
-    (home-page "http://riskassessment.r-forge.r-project.org")
+    (home-page "https://riskassessment.r-forge.r-project.org")
     (synopsis "Fitting a parametric distribution from data")
     (description
      "This package extends the @code{fitdistr} function of the MASS package
@@ -6591,7 +6591,7 @@ interface to @code{PostgreSQL}, a relational database.")
          "1d34m2nyk7m6j2dci69bhy5mlw479xax1517j7f14pq7vhpsm9l1"))))
     (build-system r-build-system)
     (propagated-inputs (list r-lpsolve))
-    (home-page "http://linprog.r-forge.r-project.org/")
+    (home-page "https://linprog.r-forge.r-project.org/")
     (synopsis "Linear programming and optimization")
     (description
      "This package can be used to solve Linear Programming / Linear
@@ -6612,7 +6612,7 @@ Optimization problems by using the simplex algorithm.")
     (build-system r-build-system)
     (propagated-inputs
      (list r-magic r-linprog r-lpsolve r-rcpp r-rcppprogress))
-    (home-page "http://geometry.r-forge.r-project.org/")
+    (home-page "https://geometry.r-forge.r-project.org/")
     (synopsis "Mesh generator and surface tessellator")
     (description
      "This package makes the qhull library available in R, in a similar manner
@@ -7644,7 +7644,7 @@ phylogenies and ancestral character states.")
          "0vc2is1hf1g0sw92kzl8mddck264qwiqgm5q2wkcwwz65fss7mkf"))))
     (build-system r-build-system)
     (propagated-inputs (list r-proxy))
-    (home-page "http://dtw.r-forge.r-project.org/")
+    (home-page "https://dtw.r-forge.r-project.org/")
     (synopsis "Dynamic Time Warping Algorithms")
     (description "This package provides a comprehensive implementation of
 @dfn{dynamic time warping} (DTW) algorithms in R.  DTW computes the
@@ -10280,7 +10280,7 @@ stored data and compression with the LZ4 and ZSTD compressors.")
     (properties `((upstream-name . "fst")))
     (build-system r-build-system)
     (propagated-inputs (list r-fstcore r-rcpp))
-    (home-page "http://www.fstpackage.org")
+    (home-page "https://www.fstpackage.org")
     (synopsis "Fast serialization of data frames")
     (description
      "The fst package for R provides a fast, easy and flexible way to
@@ -11359,7 +11359,7 @@ functions.")
      (list jags))
     (native-inputs
      (list pkg-config))
-    (home-page "http://mcmc-jags.sourceforge.net")
+    (home-page "https://mcmc-jags.sourceforge.net")
     (synopsis "Bayesian graphical models using MCMC")
     (description
      "This package provides an R interface to the JAGS MCMC library.  JAGS is
@@ -12480,7 +12480,7 @@ through permutation testing.")
      (list r-igraph r-network))
     (native-inputs
      (list r-knitr))
-    (home-page "http://mbojan.github.io/intergraph")
+    (home-page "https://mbojan.github.io/intergraph")
     (synopsis "Coercion routines for network data objects")
     (description
      "Functions implemented in this package allow coercing (i.e. convert)
@@ -12830,7 +12830,7 @@ data with multiple data types.")
     (build-system r-build-system)
     (propagated-inputs
      (list r-kernsmooth))
-    (home-page "http://qualV.R-Forge.R-Project.org/")
+    (home-page "https://qualV.R-Forge.R-Project.org/")
     (synopsis "Qualitative Validation Methods")
     (description
      "This package provides qualitative methods for the validation of dynamic
@@ -12891,7 +12891,7 @@ subsequence} (LCS) using a dynamic programming algorithm.")
            r-vctrs))
     (native-inputs
      (list r-knitr))
-    (home-page "http://larmarange.github.io/labelled/")
+    (home-page "https://larmarange.github.io/labelled/")
     (synopsis "Manipulating labelled data")
     (description
      "This package provides useful functions to deal with the
@@ -13608,7 +13608,7 @@ console, resulting in an interactive editing environment.")
            r-mitools
            r-numderiv
            r-survival))
-    (home-page "http://r-survey.r-forge.r-project.org/survey/")
+    (home-page "https://r-survey.r-forge.r-project.org/survey/")
     (synopsis "Analysis of complex survey samples")
     (description
      "This package provides tools for the analysis of complex survey samples.
@@ -14109,7 +14109,7 @@ and permutation inference in the framework of Strasser and Weber (1999).")
            r-multcomp
            r-mvtnorm
            r-survival))
-    (home-page "http://coin.r-forge.r-project.org")
+    (home-page "https://coin.r-forge.r-project.org")
     (synopsis "Conditional inference procedures in a permutation test framework")
     (description
      "This package provides conditional inference procedures for the general
@@ -15747,7 +15747,7 @@ al. (2010) <DOI:10.1016/j.neuroimage.2010.04.241>, Tabelow and Polzehl (2011)
         (base32
          "082qj08kzyzwvjacwq0sl3xxdx6iz5hgx6q24jv1mnvx7z5xn5ry"))))
     (build-system r-build-system)
-    (home-page "http://minato.sip21c.org/msb/")
+    (home-page "https://minato.sip21c.org/msb/")
     (synopsis "Functions for medical statistics book with demographic data")
     (description
      "This package provides several utility functions for the book entitled
@@ -16050,7 +16050,7 @@ Processing.")
     (build-system r-build-system)
     (propagated-inputs
      (list r-bh r-nlp r-rcpp r-slam r-xml2))
-    (home-page "http://tm.r-forge.r-project.org/")
+    (home-page "https://tm.r-forge.r-project.org/")
     (synopsis "Text mining package")
     (description
      "This package provides a framework for text mining applications within R.")
@@ -16411,7 +16411,7 @@ structure of any data type.")
         (base32
          "028fw61n61i79fhnaqx7gmdifdpbvp3yiaq9vvfrbv4k7i84r83i"))))
     (build-system r-build-system)
-    (home-page "http://strimmerlab.org/software/corpcor/")
+    (home-page "https://strimmerlab.org/software/corpcor/")
     (synopsis "Efficient estimation of covariance and (partial) correlation")
     (description
      "This package implements a James-Stein-type shrinkage estimator for the
@@ -17177,7 +17177,7 @@ limitations\" using the GNU Multiple Precision library.")
      (list r-gmp))
     (native-inputs
      (list pkg-config))
-    (home-page "http://rmpfr.r-forge.r-project.org/")
+    (home-page "https://rmpfr.r-forge.r-project.org/")
     (synopsis "R bindings to the MPFR library")
     (description
      "This package supports arithmetic (via S4 classes and methods) for
@@ -17708,7 +17708,7 @@ covariance functions for large data sets.")
     (build-system r-build-system)
     (propagated-inputs
      (list r-fields r-maps))
-    (home-page "http://spatialextremes.r-forge.r-project.org/")
+    (home-page "https://spatialextremes.r-forge.r-project.org/")
     (synopsis "Modelling spatial extremes")
     (description
      "This package provides tools for the statistical modelling of spatial
@@ -17902,7 +17902,7 @@ covariates of each feature, making the downstream analysis easy.")
          "046w3xbr535c5jyd68adv42a7limxp1mv57b5w6w673w707lmw2p"))))
     (build-system r-build-system)
     (propagated-inputs (list r-corpcor))
-    (home-page "http://strimmerlab.org/software/longitudinal/")
+    (home-page "https://strimmerlab.org/software/longitudinal/")
     (synopsis "Analysis of multiple time course data")
     (description
      "This package contains general data structures and functions for
@@ -17926,7 +17926,7 @@ dynamical correlation and dynamical covariance.")
     (build-system r-build-system)
     (propagated-inputs
      (list r-corpcor r-fdrtool r-longitudinal))
-    (home-page "http://strimmerlab.org/software/genenet/")
+    (home-page "https://strimmerlab.org/software/genenet/")
     (synopsis "Modeling and inferring gene networks")
     (description
      "This package analyzes gene expression (time series) data with focus on
@@ -18720,7 +18720,7 @@ identifying outliers.")
     (propagated-inputs
      (list r-rcpp r-rcpparmadillo))
     (native-inputs (list r-knitr))
-    (home-page "http://www.perossi.org/home/bsm-1")
+    (home-page "https://www.perossi.org/home/bsm-1")
     (synopsis "Bayesian inference for marketing/micro-econometrics")
     (description
      "This package covers many important models used in marketing and
@@ -19787,7 +19787,7 @@ barplots or heatmaps.")
      (list r-ade4 r-segmented))
     (inputs
      (list zlib))
-    (home-page "http://seqinr.r-forge.r-project.org/")
+    (home-page "https://seqinr.r-forge.r-project.org/")
     (synopsis "Biological sequences retrieval and analysis")
     (description
      "This package provides tools for exploratory data analysis and data
@@ -21573,7 +21573,7 @@ repository.")
     (build-system r-build-system)
     (propagated-inputs
      (list r-kernsmooth r-mass))
-    (home-page "http://mpm.r-forge.r-project.org")
+    (home-page "https://mpm.r-forge.r-project.org")
     (synopsis "Multivariate projection methods")
     (description
      "This is a package for exploratory graphical analysis of multivariate
@@ -22212,7 +22212,7 @@ Row} (CSR) format.")
            r-stringi))
     (native-inputs
      (list r-knitr))
-    (home-page "http://text2vec.org")
+    (home-page "https://text2vec.org")
     (synopsis "Text mining framework for R")
     (description
      "This package provides fast and memory-friendly tools for text
@@ -23594,7 +23594,7 @@ effect size.")
      (list r-sp))
     (native-inputs
      (list pkg-config r-knitr))
-    (home-page "http://rgdal.r-forge.r-project.org")
+    (home-page "https://rgdal.r-forge.r-project.org")
     (synopsis "Bindings for the Geospatial Data Abstraction Library")
     (description
      "This package provides bindings to the Geospatial Data Abstraction
@@ -25276,7 +25276,7 @@ transcription, ...")
      (list libsndfile))
     (propagated-inputs
      (list r-tuner))
-    (home-page "http://rug.mnhn.fr/seewave")
+    (home-page "https://rug.mnhn.fr/seewave")
     (synopsis "Sound analysis and synthesis")
     (description
      "This package provides functions for analysing, manipulating, displaying,
@@ -25846,7 +25846,7 @@ R.")
            r-locfit
            r-rcolorbrewer))
     (native-inputs (list gfortran))
-    (home-page "http://pkg.robjhyndman.com/hdrcde")
+    (home-page "https://pkg.robjhyndman.com/hdrcde")
     (synopsis "Highest density regions and conditional density estimation")
     (description
      "This is a package for the computation of highest density regions in one
@@ -26632,7 +26632,7 @@ different conceptual parts of the algorithm.")
     (build-system r-build-system)
     (propagated-inputs
      (list r-mass r-minpack-lm r-rgl r-scatterplot3d))
-    (home-page "http://www.maths.nottingham.ac.uk/~ild/shapes")
+    (home-page "https://www.maths.nottingham.ac.uk/~ild/shapes")
     (synopsis "Statistical shape analysis")
     (description
      "This package provides routines for the statistical analysis of landmark
@@ -26748,7 +26748,7 @@ statistical shape analysis and archetypal analysis.")
     (propagated-inputs
      (list r-bh
            r-rcpp))
-    (home-page "http://dirk.eddelbuettel.com/code/anytime.html")
+    (home-page "https://dirk.eddelbuettel.com/code/anytime.html")
     (synopsis "Converter of input to POSIXct or Date")
     (description
      "The package converts the input in any one of character, integer, numeric,
@@ -27689,7 +27689,7 @@ Gibbs sampling by Xuan-Hieu Phan and co-authors.")
            r-rcpparmadillo
            r-slam
            r-stringr))
-    (home-page "http://www.structuraltopicmodel.com/")
+    (home-page "https://www.structuraltopicmodel.com/")
     (synopsis "Estimation of the Structural Topic Model")
     (description
      "The @dfn{Structural Topic Model} (STM) allows researchers to estimate
@@ -28196,7 +28196,7 @@ model objects and help reduce the size of model objects saved to disk.")
     (build-system r-build-system)
     (propagated-inputs
      (list r-plyr r-rjson r-whisker))
-    (home-page "http://christophergandrud.github.io/d3Network/")
+    (home-page "https://christophergandrud.github.io/d3Network/")
     (synopsis "Create D3 JavaScript network, tree, dendrogram, and Sankey graphs")
     (description
      "This package is intended to make it easy to create D3 JavaScript
@@ -28329,7 +28329,7 @@ well as Ravand and Robitzsch (2015).")
     (build-system r-build-system)
     (propagated-inputs
      (list r-cdm r-rcpp r-rcpparmadillo))
-    (home-page "http://www.edmeasurementsurveys.com/TAM/Tutorials/")
+    (home-page "https://www.edmeasurementsurveys.com/TAM/Tutorials/")
     (synopsis "Test analysis modules")
     (description
      "This package includes tools for marginal maximum likelihood estimation
@@ -29942,7 +29942,7 @@ permuted copies (shadows).")
      (list r-quadprog))
     (native-inputs
      (list r-knitr))
-    (home-page "http://directlabels.r-forge.r-project.org/")
+    (home-page "https://directlabels.r-forge.r-project.org/")
     (synopsis "Direct labels for multicolor plots")
     (description
      "This package provides an extensible framework for automatically placing
@@ -30543,7 +30543,7 @@ Kolmogorov-Smirnov, ANOVA) are also supported.")
     (properties
      `((upstream-name . "spatstat.utils")))
     (build-system r-build-system)
-    (home-page "http://www.spatstat.org")
+    (home-page "https://www.spatstat.org")
     (synopsis "Utility functions for spatstat")
     (description
      "This package contains utility functions for the @code{spatstat} package
@@ -30566,7 +30566,7 @@ which may also be useful for other purposes.")
     (build-system r-build-system)
     (propagated-inputs
      (list r-abind r-matrix r-spatstat-utils r-tensor))
-    (home-page "http://spatstat.org/")
+    (home-page "https://spatstat.org/")
     (synopsis "Sparse three-dimensional arrays and linear algebra utilities")
     (description
      "This package defines sparse three-dimensional arrays and supports
@@ -30589,7 +30589,7 @@ matrix calculations that are common in statistics, such as quadratic forms.")
     (build-system r-build-system)
     (propagated-inputs
      (list r-matrix r-spatstat-utils))
-    (home-page "http://www.spatstat.org")
+    (home-page "https://www.spatstat.org")
     (synopsis "Datasets for spatstat")
     (description
      "This package contains all the datasets for the @code{spatstat}
@@ -30611,7 +30611,7 @@ package.")
     (build-system r-build-system)
     (propagated-inputs
      (list r-deldir r-polyclip r-spatstat-data r-spatstat-utils))
-    (home-page "http://spatstat.org/")
+    (home-page "https://spatstat.org/")
     (synopsis "Geometrical functionality of the spatstat package")
     (description
      "This is a subset of the original spatstat package, containing the
@@ -30645,7 +30645,7 @@ for the geometry of linear networks.")
            r-spatstat-sparse
            r-spatstat-utils
            r-tensor))
-    (home-page "http://spatstat.org/")
+    (home-page "https://spatstat.org/")
     (synopsis "Core functionality of the spatstat package")
     (description
      "This is a subset of the original spatstat package, containing all of the
@@ -30675,7 +30675,7 @@ user-level code from spatstat, except for the code for linear networks.")
            r-spatstat-random
            r-spatstat-sparse
            r-spatstat-utils))
-    (home-page "http://spatstat.org/")
+    (home-page "https://spatstat.org/")
     (synopsis "Linear networks functionality of the spatstat package")
     (description
      "This is a subset of the spatstat package, containing its functionality
@@ -30695,7 +30695,7 @@ for spatial data on a linear network.")
     (properties `((upstream-name . "spatstat.random")))
     (build-system r-build-system)
     (propagated-inputs (list r-spatstat-data r-spatstat-geom r-spatstat-utils))
-    (home-page "http://spatstat.org/")
+    (home-page "https://spatstat.org/")
     (synopsis "Random Generation Functionality for the 'spatstat' Family")
     (description
      "This package provides functionality for random generation of spatial
@@ -30727,7 +30727,7 @@ sampler).")
      (list r-spatstat-data r-spatstat-explore r-spatstat-geom
            r-spatstat-linnet r-spatstat-model r-spatstat-random
            r-spatstat-utils))
-    (home-page "http://www.spatstat.org")
+    (home-page "https://www.spatstat.org")
     (synopsis "Spatial Point Pattern analysis, model-fitting, simulation, tests")
     (description
      "This package provides a comprehensive toolbox for analysing Spatial
@@ -30803,7 +30803,7 @@ semantics and supports interaction with @code{ALTREP} vectors.")
     (properties `((upstream-name . "RcppTOML")))
     (build-system r-build-system)
     (propagated-inputs (list r-rcpp))
-    (home-page "http://dirk.eddelbuettel.com/code/rcpp.toml.html")
+    (home-page "https://dirk.eddelbuettel.com/code/rcpp.toml.html")
     (synopsis "Rcpp bindings to TOML parser")
     (description
      "The TOML configuration format specifies an excellent format suitable for
@@ -32468,7 +32468,7 @@ this variability problem can be overcome.")
          "1kdnm5ilfn5fclry3f1d518761hykrqgjhv69kc881r2fpcfa1lv"))))
     (properties `((upstream-name . "MLEcens")))
     (build-system r-build-system)
-    (home-page "http://stat.ethz.ch/~maathuis/")
+    (home-page "https://stat.ethz.ch/~maathuis/")
     (synopsis "Computation of the MLE for bivariate (interval) censored data")
     (description
      "This package contains functions to compute the nonparametric
@@ -32786,7 +32786,7 @@ other R users.")
            r-spatstat-geom
            r-tibble
            r-uwot))
-    (home-page "http://www.satijalab.org/seurat")
+    (home-page "https://www.satijalab.org/seurat")
     (synopsis "Seurat is an R toolkit for single cell genomics")
     (description
      "This package is an R package designed for QC, analysis, and
@@ -36132,7 +36132,7 @@ large datasets.")
            r-mass
            r-nnet
            r-randomforest))
-    (home-page "http://www.sciviews.org/zooimage")
+    (home-page "https://www.sciviews.org/zooimage")
     (synopsis "Machine learning algorithms with unified interface")
     (description
      "This package provides a unified interface to various machine learning
@@ -36165,7 +36165,7 @@ algorithms.  Confusion matrices are provided too.")
            r-svdialogs
            r-svmisc
            r-tiff))
-    (home-page "http://www.sciviews.org/zooimage")
+    (home-page "https://www.sciviews.org/zooimage")
     (synopsis "Analysis of numerical plankton images")
     (description
      "This package provides a solution for analyzing digital images of
diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index 6ff2ec1c71..df8ec29022 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -35416,7 +35416,7 @@ structures.")
         ("rust-time" ,rust-time-0.1)
         ("rust-typemap" ,rust-typemap-0.3)
         ("rust-url" ,rust-url-1))))
-    (home-page "http://nickel-org.github.io/")
+    (home-page "https://nickel-org.github.io/")
     (synopsis "Web application framework for Rust")
     (description
      "@code{nickel.rs} is a simple and lightweight foundation for web
@@ -59639,7 +59639,7 @@ fixed set of worker threads.")
         ("rust-log" ,rust-log-0.4)
         ("rust-ordered-float" ,rust-ordered-float-1)
         ("rust-threadpool" ,rust-threadpool-1))))
-    (home-page "http://thrift.apache.org")
+    (home-page "https://thrift.apache.org")
     (synopsis "Rust bindings for the Apache Thrift RPC system")
     (description
      "This crate provides Rust bindings for the Apache Thrift RPC system.")
@@ -62744,7 +62744,7 @@ etc. distance calculations and string search.")
         ("rust-trust-dns-rustls" ,rust-trust-dns-rustls-0.20)
         ("rust-webpki" ,rust-webpki-0.21)
         ("rust-webpki-roots" ,rust-webpki-roots-0.21))))
-    (home-page "http://www.trust-dns.org/index.html")
+    (home-page "https://www.trust-dns.org/index.html")
     (synopsis "DNS over HTTPS extension for the Trust-DNS client")
     (description
      "Trust-DNS is a safe and secure DNS library.  This is an extension for
@@ -62878,7 +62878,7 @@ the Trust-DNS client to use DNS over HTTPS.")
         ("rust-tokio" ,rust-tokio-1)
         ("rust-tokio-native-tls" ,rust-tokio-native-tls-0.3)
         ("rust-trust-dns-proto" ,rust-trust-dns-proto-0.20))))
-    (home-page "http://www.trust-dns.org/index.html")
+    (home-page "https://www.trust-dns.org/index.html")
     (synopsis "native-tls extension for the Trust-DNS client")
     (description "Trust-DNS is a safe and secure DNS library.  This is an
 extension for the Trust-DNS client to use native-tls for TLS.")
@@ -62976,7 +62976,7 @@ extension for the Trust-DNS client to use native-tls for TLS.")
         ("rust-tokio" ,rust-tokio-1)
         ("rust-tokio-openssl" ,rust-tokio-openssl-0.6)
         ("rust-trust-dns-proto" ,rust-trust-dns-proto-0.20))))
-    (home-page "http://www.trust-dns.org/index.html")
+    (home-page "https://www.trust-dns.org/index.html")
     (synopsis "tokio-openssl extension for the Trust-DNS client")
     (description "Trust-DNS is a safe and secure DNS library.  This is an
 extension for the Trust-DNS client to use tokio-openssl for TLS.")
@@ -63094,7 +63094,7 @@ extension for the Trust-DNS client to use tokio-openssl for TLS.")
         ("rust-tokio" ,rust-tokio-1)
         ("rust-url" ,rust-url-2)
         ("rust-wasm-bindgen" ,rust-wasm-bindgen-0.2))))
-    (home-page "http://www.trust-dns.org/index.html")
+    (home-page "https://www.trust-dns.org/index.html")
     (synopsis "Safe and secure DNS library")
     (description
      "Trust-DNS is a safe and secure DNS library.  This is the foundational
@@ -63254,7 +63254,7 @@ DNS protocol library for all Trust-DNS projects.")
         ("rust-trust-dns-proto" ,rust-trust-dns-proto-0.20)
         ("rust-trust-dns-rustls" ,rust-trust-dns-rustls-0.20)
         ("rust-webpki-roots" ,rust-webpki-roots-0.21))))
-    (home-page "http://www.trust-dns.org/index.html")
+    (home-page "https://www.trust-dns.org/index.html")
     (synopsis "Safe and secure DNS library")
     (description
      "Trust-DNS is a safe and secure DNS library.  This Resolver library uses
@@ -63403,7 +63403,7 @@ other queries.")
         ("rust-tokio-rustls" ,rust-tokio-rustls-0.22)
         ("rust-trust-dns-proto" ,rust-trust-dns-proto-0.20)
         ("rust-webpki" ,rust-webpki-0.21))))
-    (home-page "http://www.trust-dns.org/index.html")
+    (home-page "https://www.trust-dns.org/index.html")
     (synopsis "rustls extension for the Trust-DNS client")
     (description
      "Trust-DNS is a safe and secure DNS library.  This is an extension for
@@ -64172,7 +64172,7 @@ panic-free alternative to @code{core::fmt}.")
         (("rust-criterion" ,rust-criterion-0.3)
          ("rust-num-bigint" ,rust-num-bigint-0.4)
          ("rust-rug" ,rust-rug-1))))
-    (home-page "http://parity.io")
+    (home-page "https://parity.io")
     (synopsis "Large, fixed-size integer arithmetic in Rust")
     (description "This package is a Rust library for large, fixed-size integer
 arithmetic.")
@@ -68239,7 +68239,7 @@ Read/Write streams as well as low-level in-memory encoding and decoding.")
        (("rust-linked-hash-map" ,rust-linked-hash-map-0.5))
        #:cargo-development-inputs
        (("rust-quickcheck" ,rust-quickcheck-0.9))))
-    (home-page "http://chyh1990.github.io/yaml-rust/")
+    (home-page "https://chyh1990.github.io/yaml-rust/")
     (synopsis "YAML 1.2 parser for Rust")
     (description "This package is a YAML 1.2 parser for Rust.")
     (license (list license:expat license:asl2.0))))
diff --git a/gnu/packages/crypto.scm b/gnu/packages/crypto.scm
index 57a42a6a84..b4bef33b06 100644
--- a/gnu/packages/crypto.scm
+++ b/gnu/packages/crypto.scm
@@ -149,7 +149,7 @@
     (description "The libdecaf library is an implementation of elliptic curve
 cryptography using the Montgomery and Edwards curves Curve25519, Ed25519,
 Ed448-Goldilocks and Curve448, using the Decaf encoding.")
-    (home-page "http://ed448goldilocks.sourceforge.net/")
+    (home-page "https://ed448goldilocks.sourceforge.net/")
     (license (list license:expat        ;library
                    license:bsd-2))))    ;python bindings
 
@@ -1013,7 +1013,7 @@ using ctypes is included, and several other language bindings are available.")
                (base32
                 "0kx4a5mhmp73ljknl2lcccmw9z3f5y8lqw0ghaymzvln1984g75i"))))
     (build-system gnu-build-system)
-    (home-page "http://ccrypt.sourceforge.net")
+    (home-page "https://ccrypt.sourceforge.net")
     (synopsis "Command-line utility for encrypting and decrypting files and streams")
     (description "@command{ccrypt} is a utility for encrypting and decrypting
 files and streams.  It was designed as a replacement for the standard unix
diff --git a/gnu/packages/curl.scm b/gnu/packages/curl.scm
index eb88c10f24..45bd2e6d36 100644
--- a/gnu/packages/curl.scm
+++ b/gnu/packages/curl.scm
@@ -333,7 +333,7 @@ FILE and LDAP; in particular it supports HTTPS certificates, HTTP POST, HTTP
 PUT, FTP uploading, kerberos, HTTP form based upload, proxies, cookies,
 user+password authentication, file transfer resume, http proxy tunneling and
 more!")
-    (home-page "http://www.curlpp.org")
+    (home-page "https://www.curlpp.org")
     (license license:expat)))
 
 (define-public h2c
diff --git a/gnu/packages/databases.scm b/gnu/packages/databases.scm
index f32c1f2d07..15cae58c55 100644
--- a/gnu/packages/databases.scm
+++ b/gnu/packages/databases.scm
@@ -594,7 +594,7 @@ the API, and provides features such as:
      (list memcached python-pytest))
     (inputs
      (list libmemcached zlib cyrus-sasl))
-    (home-page "http://sendapatch.se/projects/pylibmc/")
+    (home-page "https://sendapatch.se/projects/pylibmc/")
     (synopsis "Python client for memcached")
     (description
      "@code{pylibmc} is a client in Python for memcached.  It is a wrapper
@@ -2344,7 +2344,7 @@ data sources.  Data sources include SQL Servers and any software with an ODBC
 Driver.")
    (license license:lgpl2.1+)
    ;; COPYING contains copy of lgpl2.1 - but copyright notices just say "LGPL"
-   (home-page "http://www.unixodbc.org")))
+   (home-page "https://www.unixodbc.org")))
 
 (define-public nanodbc
   (package
@@ -2668,7 +2668,7 @@ organized in hash table, B+ tree, or fixed-length array.")
              #t)))))
     (inputs
      (list lz4 zlib snappy))
-    (home-page "http://source.wiredtiger.com/")
+    (home-page "https://source.wiredtiger.com/")
     (synopsis "NoSQL data engine")
     (description
      "WiredTiger is an extensible platform for data management.  It supports
@@ -2861,7 +2861,7 @@ semantics.")
      "Libpqxx is a C++ library to enable user programs to communicate with the
 PostgreSQL database back-end.  The database back-end can be local or it may be
 on another machine, accessed via TCP/IP.")
-    (home-page "http://pqxx.org/")
+    (home-page "https://pqxx.org/")
     (license license:bsd-3)))
 
 (define-public go-go-etcd-io-bbolt
@@ -3190,7 +3190,7 @@ for ODBC.")
            pkg-config
            txt2man
            which))
-    (home-page "http://mdbtools.sourceforge.net/")
+    (home-page "https://mdbtools.sourceforge.net/")
     (synopsis "Read Microsoft Access databases")
     (description "MDB Tools is a set of tools and applications to read the
 proprietary MDB file format used in Microsoft's Access database package.  This
@@ -3354,7 +3354,7 @@ Memory-Mapped Database} (LMDB), a high-performance key-value store.")
      (list autoconf automake bison flex gperf libtool))
     (inputs
      (list openssl net-tools readline zlib))
-    (home-page "http://vos.openlinksw.com/owiki/wiki/VOS/")
+    (home-page "https://vos.openlinksw.com/owiki/wiki/VOS/")
     (synopsis "Multi-model database system")
     (description "Virtuoso is a scalable cross-platform server that combines
 relational, graph, and document data management with web application server
@@ -4683,7 +4683,7 @@ SQLAlchemy.")
 similar to the DBI/DBD layer in Perl.  Writing one generic set of code,
 programmers can leverage the power of multiple databases and multiple
 simultaneous database connections by using this framework.")
-    (home-page "http://libdbi.sourceforge.net/")
+    (home-page "https://libdbi.sourceforge.net/")
     (license license:lgpl2.1+)))
 
 (define-public libdbi-drivers
@@ -4754,7 +4754,7 @@ The drivers officially supported by @code{libdbi} are:
 @item PostgreSQL,
 @item SQLite.
 @end itemize")
-    (home-page "http://libdbi-drivers.sourceforge.net/")
+    (home-page "https://libdbi-drivers.sourceforge.net/")
     (license license:lgpl2.1+)))
 
 (define-public soci
@@ -4789,7 +4789,7 @@ The drivers officially supported by @code{libdbi} are:
     (description
      "SOCI is an abstraction layer for several database backends, including
 PostreSQL, SQLite, ODBC and MySQL.")
-    (home-page "http://soci.sourceforge.net/")
+    (home-page "https://soci.sourceforge.net/")
     (license license:boost1.0)))
 
 (define-public freetds
diff --git a/gnu/packages/debian.scm b/gnu/packages/debian.scm
index 4319d3a518..c962adf27f 100644
--- a/gnu/packages/debian.scm
+++ b/gnu/packages/debian.scm
@@ -328,7 +328,7 @@ debian/copyright for more information.")))))
          #:phases (modify-phases %standard-phases (delete 'configure))))
       (inputs
        (list wget perl))
-      (home-page "http://apt-mirror.github.io/")
+      (home-page "https://apt-mirror.github.io/")
       (synopsis "Script for mirroring a Debian repository")
       (description
        "apt-mirror is a small tool that provides the ability to selectively
diff --git a/gnu/packages/debug.scm b/gnu/packages/debug.scm
index 625a072218..154232ed50 100644
--- a/gnu/packages/debug.scm
+++ b/gnu/packages/debug.scm
@@ -620,7 +620,7 @@ the position of the variable and allows you to modify its value.")
     (inputs
      (modify-inputs (package-inputs gnu-make)
        (prepend readline)))
-    (home-page "http://bashdb.sourceforge.net/remake/")
+    (home-page "https://bashdb.sourceforge.net/remake/")
     (description "Remake is an enhanced version of GNU Make that adds improved
 error reporting, better tracing, profiling, and a debugger.")
     (license license:gpl3+)))
diff --git a/gnu/packages/disk.scm b/gnu/packages/disk.scm
index f9fe9c5989..6fc69a8a63 100644
--- a/gnu/packages/disk.scm
+++ b/gnu/packages/disk.scm
@@ -527,7 +527,7 @@ and a @command{fsck.vfat} compatibility symlink for use in an initrd.")
        (sha256
         (base32 "1gmdxr36allrgap2j4dv238d8awkj327ww0jjwpjwrpbvfpyzjf4"))))
     (build-system gnu-build-system)
-    (home-page "http://sg.danny.cz/sg/sdparm.html")
+    (home-page "https://sg.danny.cz/sg/sdparm.html")
     (synopsis "Provide access to SCSI device parameters")
     (description
      "Sdparm reads and modifies SCSI device parameters.  These devices can be
@@ -562,7 +562,7 @@ and unloading removable media and some other housekeeping functions.")
                           (string-append "manprefix=")
                           (string-append "DESTDIR="
                                          (assoc-ref %outputs "out")))))
-    (home-page "http://idle3-tools.sourceforge.net")
+    (home-page "https://idle3-tools.sourceforge.net")
     (synopsis "Change or disable Western Digital hard drives' Idle3 timer")
     (description
      "Idle3-tools provides a utility to get, set, or disable the Idle3 timer
@@ -1448,7 +1448,7 @@ reliably with @code{bmaptool} than with traditional tools, like @code{dd} or
      (list autoconf automake libtool pkg-config))
     (inputs
      (list cairo pango tokyocabinet ncurses))
-    (home-page "http://duc.zevv.nl")
+    (home-page "https://duc.zevv.nl")
     (synopsis "Library and suite of tools for inspecting disk usage")
     (description "Duc maintains a database of accumulated sizes of
 directories of the file system, and allows you to query this database with
diff --git a/gnu/packages/django.scm b/gnu/packages/django.scm
index d73a1bb94b..1915ec66f1 100644
--- a/gnu/packages/django.scm
+++ b/gnu/packages/django.scm
@@ -460,7 +460,7 @@ useful tools for testing Django applications and projects.")
            python-setuptools-scm
            python-pysolr
            python-whoosh))
-    (home-page "http://haystacksearch.org/")
+    (home-page "https://haystacksearch.org/")
     (synopsis "Pluggable search for Django")
     (description "Haystack provides modular search for Django.  It features a
 unified, familiar API that allows you to plug in different search backends
diff --git a/gnu/packages/djvu.scm b/gnu/packages/djvu.scm
index 92b4b6dce7..10974c93cb 100644
--- a/gnu/packages/djvu.scm
+++ b/gnu/packages/djvu.scm
@@ -85,7 +85,7 @@
              (substitute* "desktopfiles/Makefile.am"
                (("gzip") "gzip -n"))
              #t)))))
-    (home-page "http://djvu.sourceforge.net/")
+    (home-page "https://djvu.sourceforge.net/")
     (synopsis "Implementation of DjVu, the document format")
     (description "DjVuLibre is an implementation of DjVu,
 including viewers, browser plugins, decoders, simple encoders, and
@@ -124,7 +124,7 @@ utilities.")
              (for-each make-file-writable
                        (find-files "."))
              #t)))))
-    (home-page "http://djvu.sourceforge.net/djview4.html")
+    (home-page "https://djvu.sourceforge.net/djview4.html")
     (synopsis "Viewer for the DjVu image format")
     (description "DjView is a standalone viewer for DjVu files.
 
diff --git a/gnu/packages/dns.scm b/gnu/packages/dns.scm
index 1a4099dc8e..c15017e03f 100644
--- a/gnu/packages/dns.scm
+++ b/gnu/packages/dns.scm
@@ -316,7 +316,7 @@ prompt the user with the option to go with insecure DNS only.")
                           (string-append "PKG_CONFIG=" ,(pkg-config-for-target))
                           "COPTS=\"-DHAVE_DBUS\"")
        #:tests? #f))                    ; no ‘check’ target
-    (home-page "http://www.thekelleys.org.uk/dnsmasq/doc.html")
+    (home-page "https://www.thekelleys.org.uk/dnsmasq/doc.html")
     (synopsis "Small caching DNS proxy and DHCP/TFTP server")
     (description
      "Dnsmasq is a light-weight DNS forwarder and DHCP server.  It is designed
diff --git a/gnu/packages/docbook.scm b/gnu/packages/docbook.scm
index 9f2869ed25..8d4892b93b 100644
--- a/gnu/packages/docbook.scm
+++ b/gnu/packages/docbook.scm
@@ -632,7 +632,7 @@ the in DocBook SGML DTDs.")
                                           "/bin"))
                          '("libxslt" "texlive"
                            "imagemagick" "inkscape"))))))))))
-    (home-page "http://dblatex.sourceforge.net")
+    (home-page "https://dblatex.sourceforge.net")
     (synopsis "DocBook to LaTeX Publishing")
     (description
      "DocBook to LaTeX Publishing transforms your SGML/XML DocBook documents
@@ -818,7 +818,7 @@ Detect the differences in markup between two SGML files.
                (map (lambda (prog)
                       (symlink prog (string-append out "/bin/db2x_" prog)))
                     '("docbook2man" "docbook2texi"))))))))
-    (home-page "http://docbook2x.sourceforge.net")
+    (home-page "https://docbook2x.sourceforge.net")
     (synopsis "Convert DocBook to man page and Texinfo format")
     (description
      "docbook2X is a software package that converts DocBook documents into the
diff --git a/gnu/packages/documentation.scm b/gnu/packages/documentation.scm
index b701f2936e..a372e1a6ca 100644
--- a/gnu/packages/documentation.scm
+++ b/gnu/packages/documentation.scm
@@ -360,7 +360,7 @@ additional metadata about the object to which the docstring belongs.")
            docbook-xml-4.2))
     (native-inputs
      (list intltool))
-    (home-page "http://scrollkeeper.sourceforge.net/")
+    (home-page "https://scrollkeeper.sourceforge.net/")
     (synopsis "Open Documentation Cataloging Project")
     (description
      "ScrollKeeper is a cataloging system for documentation.  It manages
diff --git a/gnu/packages/ebook.scm b/gnu/packages/ebook.scm
index 6d645fba38..8e6f2bbc09 100644
--- a/gnu/packages/ebook.scm
+++ b/gnu/packages/ebook.scm
@@ -434,7 +434,7 @@ accessing and converting various ebook file formats.")
                (base32
                 "1f36dbq7nc77lln1by2n1yl050g9dc63viawhs3gc3169mavm36x"))))
     (build-system gnu-build-system)
-    (home-page "http://vimgadgets.sourceforge.net/liblinebreak/")
+    (home-page "https://vimgadgets.sourceforge.net/liblinebreak/")
     (synopsis "Library for detecting where linebreaks are allowed in text")
     (description "@code{liblinebreak} is an implementation of the line
 breaking algorithm as described in Unicode 6.0.0 Standard Annex 14,
diff --git a/gnu/packages/electronics.scm b/gnu/packages/electronics.scm
index 15e7318926..98b71e041e 100644
--- a/gnu/packages/electronics.scm
+++ b/gnu/packages/electronics.scm
@@ -429,5 +429,5 @@ individual low-level driver modules.")
     (description "Xoscope is a digital oscilloscope that can acquire signals
 from ALSA, ESD, and COMEDI sources.  This package currently does not include
 support for ESD sources.")
-    (home-page "http://xoscope.sourceforge.net/")
+    (home-page "https://xoscope.sourceforge.net/")
     (license license:gpl2+)))
diff --git a/gnu/packages/emacs-xyz.scm b/gnu/packages/emacs-xyz.scm
index a361635339..0ad5dc35d4 100644
--- a/gnu/packages/emacs-xyz.scm
+++ b/gnu/packages/emacs-xyz.scm
@@ -3100,7 +3100,7 @@ directories or regex patterns.")
      ;; `vm-autoloads', from the VM package, with is neither in Emacs nor
      ;; packaged in Guix.  So, don't bother for now.
      `(#:exclude '("bbdb-vm\\.el")))
-    (home-page "http://elpa.gnu.org/packages/bbdb.html")
+    (home-page "https://elpa.gnu.org/packages/bbdb.html")
     (synopsis "Contact management utility for Emacs")
     (description
      "BBDB is the Insidious Big Brother Database for GNU Emacs.  It provides
@@ -3693,7 +3693,7 @@ Some of its major features include:
        (sha256
         (base32 "1i4hwam81p4dr0bk8257fkiz4xmv6knkjxj7a00fa35kgx5blpva"))))
     (build-system emacs-build-system)
-    (home-page "http://elpa.gnu.org/packages/caps-lock.html")
+    (home-page "https://elpa.gnu.org/packages/caps-lock.html")
     (synopsis "Caps Lock as a minor mode")
     (description
      "This package provides a minor mode to emulate the behavior of a Caps
@@ -4322,7 +4322,7 @@ filters, new key bindings and faces.  It can be enabled by
                 (emacs-substitute-variables file
                   ("djvu-djview-command"
                    (search-input-file inputs "/bin/djview")))))))))
-    (home-page "http://elpa.gnu.org/packages/djvu.html")
+    (home-page "https://elpa.gnu.org/packages/djvu.html")
     (synopsis "Edit and view Djvu files via djvused")
     (description
      "This package is a front end for the command-line program djvused from
@@ -4380,7 +4380,7 @@ the previous session
        (sha256
         (base32 "0iydz8yz866krxv1qv32k88w4464xpymh0wxgrxv6nvniwvhvd0s"))))
     (build-system emacs-build-system)
-    (home-page "http://elpa.gnu.org/packages/pabbrev.html")
+    (home-page "https://elpa.gnu.org/packages/pabbrev.html")
     (synopsis "Predictive abbreviation expansion")
     (description
      "The code provides a abbreviation expansion for Emacs.  It is
@@ -5292,7 +5292,7 @@ Markdown files.")
        (sha256
         (base32 "02imis1gxz90lah0b5n37j2hlsaw5igss11d85vpsm5d1bgw8j28"))))
     (build-system emacs-build-system)
-    (home-page "http://twmode.sourceforge.net")
+    (home-page "https://twmode.sourceforge.net")
     (synopsis "Emacs major mode for Twitter")
     (description
      "Twittering mode is an Emacs major mode for Twitter.
@@ -5851,7 +5851,7 @@ interface to pause.")
           (base32
             "1cxyxfdjg1dsmn1jrl6b7xy03xr42fb6vyggh27s4dk417ils6yg"))))
     (build-system emacs-build-system)
-    (home-page "http://elpa.gnu.org/packages/filladapt.html")
+    (home-page "https://elpa.gnu.org/packages/filladapt.html")
     (synopsis "Adaptive fill for Emacs")
     (description
      "This package provides functions which enhance the default behavior of
@@ -11239,7 +11239,7 @@ line program.")
        (sha256
         (base32 "03hcvpp6ykavidwn5x48gs986w1i5icvh7ks6p74pdaagpgw4jmk"))))
     (build-system emacs-build-system)
-    (home-page "http://rudel.sourceforge.net/")
+    (home-page "https://rudel.sourceforge.net/")
     (synopsis "Collaborative editing framework")
     (description
      "Rudel is a collaborative editing environment for GNU Emacs.  Its purpose
@@ -15380,7 +15380,7 @@ editing nginx config files.")
        (sha256
         (base32 "00c3n4gyxzv7vczqms0d62kl8zsmjfyxa92mwxn2snyx857a9jfw"))))
     (build-system emacs-build-system)
-    (home-page "http://elpa.gnu.org/packages/stream.html")
+    (home-page "https://elpa.gnu.org/packages/stream.html")
     (synopsis "Implementation of streams for Emacs")
     (description "This library provides an implementation of streams for Emacs.
 Streams are implemented as delayed evaluation of cons cells.")
@@ -16436,7 +16436,7 @@ highlights quasi-quoted expressions.")
       #:tests? #f))                     ; no check target
     (inputs
      (list emacs espeak-ng perl tcl tclx))
-    (home-page "http://emacspeak.sourceforge.net")
+    (home-page "https://emacspeak.sourceforge.net")
     (synopsis "Audio desktop interface for Emacs")
     (description
      "Emacspeak is a speech interface that allows visually impaired users to
@@ -16841,7 +16841,7 @@ reached with the right hand.")
             (invoke "make" "info"))))))
    (native-inputs
     (list texinfo))
-   (home-page "http://cc-mode.sourceforge.net/")
+   (home-page "https://cc-mode.sourceforge.net/")
    (synopsis "Framework for creating major modes for C-style languages")
    (description
     "CC Mode is an Emacs and XEmacs mode for editing C and other languages with
@@ -17761,7 +17761,7 @@ more information.")
        (sha256
         (base32 "0c05dzrs7vrhibj46jpz625482ah6xywji7way6wcvwc711y74fz"))))
     (build-system emacs-build-system)
-    (home-page "http://elpa.gnu.org/packages/eldoc.html")
+    (home-page "https://elpa.gnu.org/packages/eldoc.html")
     (synopsis "Show function arglist or variable docstring in echo area")
     (description
      "This program was inspired by the behavior of the ``mouse documentation
@@ -18020,7 +18020,7 @@ highlighting.")
                      (chdir "source")
                      (copy-file (string-append source "/lisp/jsonrpc.el")
                                 "jsonrpc.el"))))))
-      (home-page "http://elpa.gnu.org/packages/jsonrpc.html")
+      (home-page "https://elpa.gnu.org/packages/jsonrpc.html")
       (synopsis "JSON-RPC library")
       (description
        "This library implements the JSONRPC 2.0 specification as
@@ -26612,7 +26612,7 @@ scratch buffer.
                ("gtk-lookup-devhelp-indices"
                 '(list (expand-file-name "~/.guix-profile/share/gtk-doc/html/*/*.devhelp*"))))
              #t)))))
-    (home-page "http://user42.tuxfamily.org/gtk-look/index.html")
+    (home-page "https://user42.tuxfamily.org/gtk-look/index.html")
     (synopsis "Find and display HTML documentation for GTK, GNOME and Glib")
     (description "@command{gtk-look} finds and displays HTML documentation for
 GTK, GNOME and Glib functions and variables in Emacs, similar to what
@@ -30418,7 +30418,7 @@ deletion of the frame.")
        (sha256
         (base32 "0hgblj8ng7vfsdb7g1mm9m2qhzfprycdd77836l59prpak5kp55q"))))
     (build-system emacs-build-system)
-    (home-page "http://elpa.gnu.org/packages/xclip.html")
+    (home-page "https://elpa.gnu.org/packages/xclip.html")
     (synopsis "Copy and paste GUI clipboard from Emacs in text terminal")
     (description
      "This package allows Emacs to copy to and paste from the GUI clipboard
@@ -31028,7 +31028,7 @@ JIRA issue servers.")
         (base32 "07xavg6xq5ckrfy5sk5k5ldb46m5w8nw1r1k006ck8f23ajaw5z2"))))
     (build-system emacs-build-system)
     (arguments '(#:include '("\\.el$" "\\.svg$" "\\.b64$" "slime\\.el\\.gz$")))
-    (home-page "http://elpa.gnu.org/packages/slime-volleyball.html")
+    (home-page "https://elpa.gnu.org/packages/slime-volleyball.html")
     (synopsis "SVG slime volleyball game")
     (description
      "Emacs Slime Volleyball is a volleyball game.  Win points by
@@ -31460,7 +31460,7 @@ variable and the @code{minibuffer-line} face.")
        (sha256
         (base32 "09fm0ziy8cdzzw08l7l6p63dxz2a27p3laia2v51mvbva8177ls1"))))
     (build-system emacs-build-system)
-    (home-page "http://elpa.gnu.org/packages/minimap.html")
+    (home-page "https://elpa.gnu.org/packages/minimap.html")
     (synopsis "Sidebar showing a @emph{mini-map} of a buffer")
     (description
      "Minimap provides Emacs with a minimap sidebar, which is a smaller
@@ -33083,7 +33083,7 @@ uses BBDB and Message-X.")
        (sha256
         (base32 "191294k92qp8gmfypf0q8j8qrym96aqikzvyb9p03wqvbr3r1dsk"))))
     (build-system emacs-build-system)
-    (home-page "http://nschum.de/src/emacs/auto-dictionary/")
+    (home-page "https://nschum.de/src/emacs/auto-dictionary/")
     (synopsis "Automatic dictionary switcher for Emacs spell checking")
     (description "@code{auto-dictionary} is a minor mode that hooks into
 Flyspell's on-the-fly spell checking and extends these checks to also detect
@@ -33103,7 +33103,7 @@ detected language.")
        (sha256
         (base32 "090n4479zs82by7a3vb551gyjvv8lpfcylk43ywr2lfyssc9xiq0"))))
     (build-system emacs-build-system)
-    (home-page "http://elpa.gnu.org/packages/persist.html")
+    (home-page "https://elpa.gnu.org/packages/persist.html")
     (synopsis "Persist variables between Emacs sessions")
     (description
      "This package provides variables which persist across sessions.
@@ -33801,7 +33801,7 @@ rather excellent completion provided by both Bash and Zsh.")
               (sha256
                (base32 "14akj7pavfhch6ljwl26mhv7qczgmqn7mld62cf6mh4ghmhy3z4y"))))
     (build-system emacs-build-system)
-    (home-page "http://elpa.gnu.org/packages/shell-command+.html")
+    (home-page "https://elpa.gnu.org/packages/shell-command+.html")
     (synopsis "Extended Emacs @code{shell-command}")
     (description
      "Shell-command+ is a @code{shell-command} substitute that extends the
@@ -34397,7 +34397,7 @@ s-expression.")
         (base32
          "1gvywhdfg27nx6pyq7yfwq9x6j96jama59i5s9rp41pvg2dlmvm0"))))
     (build-system emacs-build-system)
-    (home-page "http://elpa.gnu.org/packages/map.html")
+    (home-page "https://elpa.gnu.org/packages/map.html")
     (synopsis "Map manipulation functions")
     (description "This package provides Emacs map-manipulation functions that
 work on alists, hash-table and arrays.  All functions are prefixed with
@@ -34416,7 +34416,7 @@ work on alists, hash-table and arrays.  All functions are prefixed with
        (sha256
         (base32 "16vzjl2dv5nmb40xfw7mfrk8i64fac3cy4sf2d2hy832rwlg15q0"))))
     (build-system emacs-build-system)
-    (home-page "http://elpa.gnu.org/packages/xref.html")
+    (home-page "https://elpa.gnu.org/packages/xref.html")
     (synopsis "Cross-referencing commands")
     (description
      "This library provides a generic infrastructure for cross referencing
@@ -34712,7 +34712,7 @@ shorter than usual, using mostly unprefixed keys.")
        (sha256
         (base32 "0zsjbpq0s0xdxd9r541f04bj1khhgzhdlzr0m4p17zjh1zardbpi"))))
     (build-system emacs-build-system)
-    (home-page "http://www.myrkr.in-berlin.de/dictionary/index.html")
+    (home-page "https://www.myrkr.in-berlin.de/dictionary/index.html")
     (synopsis "Emacs client for dictionary servers")
     (description "This package provides commands for interacting with a
 dictionary server (as defined by RFC 2229; by default, the public server at
diff --git a/gnu/packages/embedded.scm b/gnu/packages/embedded.scm
index 87c572ba0f..8d854c7e6d 100644
--- a/gnu/packages/embedded.scm
+++ b/gnu/packages/embedded.scm
@@ -1585,7 +1585,7 @@ plus many of their variants.")
                                "TARGETS += sdcc-misc\n"
                                "PKGS += $(SDCC_MISC)")))
              #t)))))
-    (home-page "http://sdcc.sourceforge.net")
+    (home-page "https://sdcc.sourceforge.net")
     (synopsis "C compiler suite for 8-bit microcontrollers")
     (description "SDCC is a retargetable, optimizing Standard C compiler suite
 that targets 8-bit microcontrollers in the Intel MCS-51 (8051); MOS Technology
diff --git a/gnu/packages/engineering.scm b/gnu/packages/engineering.scm
index 36c73e3b5b..f62e31d631 100644
--- a/gnu/packages/engineering.scm
+++ b/gnu/packages/engineering.scm
@@ -1769,7 +1769,7 @@ it suitable for security research and analysis.")
      `(("mpi" ,openmpi)))
     (inputs
      (list coreutils-minimal))
-    (home-page "http://asco.sourceforge.net/")
+    (home-page "https://asco.sourceforge.net/")
     (synopsis "SPICE circuit optimizer")
     (description
      "ASCO brings circuit optimization capabilities to existing SPICE simulators using a
@@ -1824,7 +1824,7 @@ high-performance parallel differential evolution (DE) optimization algorithm.")
      (list bison flex))
     (inputs
      (list libxaw openmpi))
-    (home-page "http://ngspice.sourceforge.net/")
+    (home-page "https://ngspice.sourceforge.net/")
     (synopsis "Mixed-level/mixed-signal circuit simulator")
     (description
      "Ngspice is a mixed-level/mixed-signal circuit simulator.  It includes
@@ -2766,7 +2766,7 @@ operations.")
     (inputs
      (list libx11))
     (arguments `(#:tests? #f))
-    (home-page "http://spacenav.sourceforge.net/")
+    (home-page "https://spacenav.sourceforge.net/")
     (synopsis
      "Library for communicating with spacenavd or 3dxsrv")
     (description
@@ -2839,7 +2839,7 @@ for compression of 3D triangle meshes.  The geometry is compressed to a
 fraction of comparable file formats (3DS, STL, COLLADA...), and the format is
 accessible through a simple API")
       (license license:zlib)
-      (home-page "http://openctm.sourceforge.net/"))))
+      (home-page "https://openctm.sourceforge.net/"))))
 
 (define-public lib3ds
   (package
diff --git a/gnu/packages/erlang.scm b/gnu/packages/erlang.scm
index dc9a932aec..57350a523c 100644
--- a/gnu/packages/erlang.scm
+++ b/gnu/packages/erlang.scm
@@ -383,7 +383,7 @@ Markdown.")
          (add-before 'check 'check-setup
            (lambda _
              (setenv "TERM" "xterm")))))) ; enable color in logs
-    (home-page "http://erlware.github.io/erlware_commons/")
+    (home-page "https://erlware.github.io/erlware_commons/")
     (synopsis "Additional standard library for Erlang")
     (description "Erlware Commons is an Erlware project focused on all aspects
 of reusable Erlang components.")
diff --git a/gnu/packages/file-systems.scm b/gnu/packages/file-systems.scm
index bbf308186c..5ed6d964af 100644
--- a/gnu/packages/file-systems.scm
+++ b/gnu/packages/file-systems.scm
@@ -706,7 +706,7 @@ single file can be mounted.")
     (build-system gnu-build-system)
     (inputs
      (list `(,util-linux "lib")))
-    (home-page "http://jfs.sourceforge.net/home.html")
+    (home-page "https://jfs.sourceforge.net/home.html")
     (synopsis "Utilities for managing JFS file systems")
     (description
      "The JFSutils are a collection of utilities for managing the @acronym{JFS,
@@ -926,7 +926,7 @@ All of this is accomplished without a centralized metadata server.")
      (list curl glib fuse))
     (native-inputs
      (list pkg-config))
-    (home-page "http://curlftpfs.sourceforge.net/")
+    (home-page "https://curlftpfs.sourceforge.net/")
     (synopsis "Mount remote file systems over FTP")
     (description
      "This is a file system client based on the FTP File Transfer Protocol.")
diff --git a/gnu/packages/finance.scm b/gnu/packages/finance.scm
index 4fd6b11ffb..a0c9a2a72a 100644
--- a/gnu/packages/finance.scm
+++ b/gnu/packages/finance.scm
@@ -1553,7 +1553,7 @@ information.")
                            patch
                            pkg-config))
       (build-system glib-or-gtk-build-system)
-      (home-page "http://gbonds.sourceforge.net")
+      (home-page "https://gbonds.sourceforge.net")
       (synopsis "@acronym{U.S.} Savings Bond inventory program for GNOME")
       (description
        "GBonds is a @acronym{U.S.} Savings Bond inventory program for the
diff --git a/gnu/packages/flashing-tools.scm b/gnu/packages/flashing-tools.scm
index e7165efe79..028631cbd2 100644
--- a/gnu/packages/flashing-tools.scm
+++ b/gnu/packages/flashing-tools.scm
@@ -216,7 +216,7 @@ intended to download and upload firmware to devices connected over USB.  It
 ranges from small devices like micro-controller boards up to mobile phones.
 With dfu-util you are able to download firmware to your device or upload
 firmware from it.")
-    (home-page "http://dfu-util.sourceforge.net/")
+    (home-page "https://dfu-util.sourceforge.net/")
     (license license:gpl2+)))
 
 (define-public teensy-loader-cli
@@ -507,7 +507,7 @@ Unifinished Extensible Firmware Interface (UEFI) images.")
            groff
            libtool
            which))
-    (home-page "http://srecord.sourceforge.net/")
+    (home-page "https://srecord.sourceforge.net/")
     (synopsis "Tools for EPROM files")
     (description "The SRecord package is a collection of powerful tools for
 manipulating EPROM load files.  It reads and writes numerous EPROM file
diff --git a/gnu/packages/fltk.scm b/gnu/packages/fltk.scm
index dee77d6aa4..5a1582b1bc 100644
--- a/gnu/packages/fltk.scm
+++ b/gnu/packages/fltk.scm
@@ -138,7 +138,7 @@ UI builder called FLUID that can be used to create applications in minutes.")
      (list cairo libxft libx11))
     (native-inputs
      (list pkg-config))
-    (home-page "http://non.tuxfamily.org/ntk/")
+    (home-page "https://non.tuxfamily.org/ntk/")
     (synopsis "Fork of FLTK with graphics rendering via Cairo")
     (description "The Non Tool Kit (NTK) is a fork of the Fast Light ToolKit
 library, adding improved graphics rendering via Cairo, a streamlined and
diff --git a/gnu/packages/fonts.scm b/gnu/packages/fonts.scm
index 9b7d965e76..4e7b7d0ac3 100644
--- a/gnu/packages/fonts.scm
+++ b/gnu/packages/fonts.scm
@@ -546,7 +546,7 @@ The unified Libertinus family consists of:
                       make-flags)))))))
     (native-inputs
      (list bdftopcf font-util mkfontdir pkg-config python))
-    (home-page "http://terminus-font.sourceforge.net/")
+    (home-page "https://terminus-font.sourceforge.net/")
     (synopsis "Simple bitmap programming font")
     (description "Terminus Font is a clean, fixed-width bitmap font, designed
 for long periods of working with computers (8 or more hours per day).")
@@ -753,7 +753,7 @@ printing old Malayalam books without compromising the writing style.")
         (base32
          "0kph9l3g7jb2bpmxdbdg5zl56wacmnvdvsdn7is1gc750sqvsn31"))))
     (build-system font-build-system)
-    (home-page "http://www.gust.org.pl/projects/e-foundry/tex-gyre/")
+    (home-page "https://www.gust.org.pl/projects/e-foundry/tex-gyre/")
     (synopsis "Remake of Ghostscript fonts")
     (description "The TeX Gyre collection of fonts is the result of an
 extensive remake and extension of the freely available base PostScript fonts
@@ -1532,7 +1532,7 @@ later hand-tweaked with the gbdfed(1) editor:
   </alias>
 </fontconfig>\n"))))
              #t)))))
-    (home-page "http://www.comicneue.com/")
+    (home-page "https://www.comicneue.com/")
     (synopsis "Font that fixes the shortcomings of Comic Sans")
     (description
      "Comic Neue is a font that attempts to create a respectable casual
diff --git a/gnu/packages/fontutils.scm b/gnu/packages/fontutils.scm
index 72621cc006..5638560b9e 100644
--- a/gnu/packages/fontutils.scm
+++ b/gnu/packages/fontutils.scm
@@ -1079,7 +1079,7 @@ poorly hinted Adobe Type 1 font through the FreeType library and get it back
 with freshly generated hints.  The files produced by default are in
 human-readable form, which further needs to be encoded with t1utilities to
 work with most software requiring Type 1 fonts.")
-    (home-page "http://ttf2pt1.sourceforge.net/")
+    (home-page "https://ttf2pt1.sourceforge.net/")
     (license license:bsd-3)))
 
 (define-public woff2
@@ -1378,7 +1378,7 @@ company or university logos, handwritten notes, etc.  The resulting image is
 not \"jaggy\" like a bitmap, but smooth.  It can then be rendered at any
 resolution.")
     (license license:gpl2+)
-    (home-page "http://potrace.sourceforge.net/")))
+    (home-page "https://potrace.sourceforge.net/")))
 
 (define-public libotf
   (package
@@ -1423,7 +1423,7 @@ using the above tables.")
      "Raph Levien's Spiro package as a library.  A mechanism for drawing
 smooth contours with constant curvature at the spline joins.")
     (license license:gpl2+)
-    (home-page "http://libspiro.sourceforge.net/")))
+    (home-page "https://libspiro.sourceforge.net/")))
 
 (define-public libuninameslist
   (package
diff --git a/gnu/packages/fpga.scm b/gnu/packages/fpga.scm
index cc7420f37f..31fc0bc5c6 100644
--- a/gnu/packages/fpga.scm
+++ b/gnu/packages/fpga.scm
@@ -259,7 +259,7 @@ For synthesis, the compiler generates netlists in the desired format.")
     (native-inputs
      `(("python-3" ,python)
        ("pkg-config" ,pkg-config)))
-    (home-page "http://www.clifford.at/icestorm/")
+    (home-page "https://www.clifford.at/icestorm/")
     (synopsis "Project IceStorm - Lattice iCE40 FPGAs bitstream tools")
     (description "Project IceStorm - Lattice iCE40 FPGAs Bitstream Tools.
 Includes the actual FTDI connector.")
@@ -353,7 +353,7 @@ FOSS FPGA place and route tool.")
        (uri (list (string-append "mirror://sourceforge/gtkwave/"
                                  "gtkwave-" version "/"
                                  "gtkwave-" version ".tar.gz")
-                  (string-append "http://gtkwave.sourceforge.net/"
+                  (string-append "https://gtkwave.sourceforge.net/"
                                  "gtkwave-" version ".tar.gz")))
        (sha256
         (base32 "1zqkfchmns5x90qxa8kg39bfhax3vxf1mrdz3lhyb9fz1gp4difn"))))
@@ -373,7 +373,7 @@ FOSS FPGA place and route tool.")
     (synopsis "Waveform viewer for FPGA simulator trace files")
     (description "This package is a waveform viewer for FPGA
 simulator trace files (@dfn{FST}).")
-    (home-page "http://gtkwave.sourceforge.net/")
+    (home-page "https://gtkwave.sourceforge.net/")
     ;; Exception against free government use in tcl_np.c and tcl_np.h.
     (license (list license:gpl2+ license:expat license:tcl/tk))))
 
@@ -416,7 +416,7 @@ constructed by a Python program.")
           (base32
             "04fi59cyn5dsci0ai7djg74ybkqfcjzhj1jfmac2xanbcrw9j3yk"))))
     (build-system python-build-system)
-    (home-page "http://www.myhdl.org/")
+    (home-page "https://www.myhdl.org/")
     (synopsis "Python as a Hardware Description Language")
     (description "This package provides a library to turn Python into
 a hardware description and verification language.")
diff --git a/gnu/packages/freedesktop.scm b/gnu/packages/freedesktop.scm
index 8fc030a493..08f3c3f56f 100644
--- a/gnu/packages/freedesktop.scm
+++ b/gnu/packages/freedesktop.scm
@@ -1537,7 +1537,7 @@ formats.")
      (list pkg-config))
     (inputs
      (list eudev))
-    (home-page "http://0pointer.de/blog/projects/being-smart.html")
+    (home-page "https://0pointer.de/blog/projects/being-smart.html")
     (synopsis "ATA S.M.A.R.T. reading and parsing library")
     (description
      "This library supports a subset of the ATA S.M.A.R.T. (Self-Monitoring,
diff --git a/gnu/packages/ftp.scm b/gnu/packages/ftp.scm
index 80ffa927e3..5edbc412ea 100644
--- a/gnu/packages/ftp.scm
+++ b/gnu/packages/ftp.scm
@@ -165,7 +165,7 @@ FTP browser, as well as non-interactive commands such as @code{ncftpput} and
     (build-system gnu-build-system)
     (native-inputs
      (list automake autoconf gettext-minimal))
-    (home-page "http://weex.sourceforge.net/")
+    (home-page "https://weex.sourceforge.net/")
     (synopsis "Non-interactive client for FTP synchronization")
     (description
      "Weex is a utility designed to automate the task of remotely
diff --git a/gnu/packages/game-development.scm b/gnu/packages/game-development.scm
index da9c63b799..a0de1b339e 100644
--- a/gnu/packages/game-development.scm
+++ b/gnu/packages/game-development.scm
@@ -242,7 +242,7 @@ is used in some video games and movies.")
      (list gawk procps))
     (inputs
      (list boost))
-    (home-page "http://privat.bahnhof.se/wb758135/")
+    (home-page "https://privat.bahnhof.se/wb758135/")
     (synopsis "Double dummy solver for the bridge card game")
     (description "DDS is a double-dummy solver of bridge hands.  It supports
 single-threading and multi-threading for improved performance.  DDS
@@ -466,7 +466,7 @@ possible, and it also makes the SGE easy to learn.")
     (build-system python-build-system)
     (propagated-inputs
      (list python-six))
-    (home-page "http://python-tmx.nongnu.org")
+    (home-page "https://python-tmx.nongnu.org")
     (synopsis "Python library for the @code{Tiled} TMX format")
     (description
      "Python TMX reads and writes the @code{Tiled} TMX format in a simple way.
@@ -797,7 +797,7 @@ window, graphics, audio and network.")
     (description "Sfxr is a tool for quickly generating simple sound effects.
 Originally created for use in video game prototypes, it can generate random
 sounds from presets such as \"explosion\" or \"powerup\".")
-    (home-page "http://www.drpetter.se/project_sfxr.html")
+    (home-page "https://www.drpetter.se/project_sfxr.html")
     (license license:expat)))
 
 (define-public surgescript
@@ -1184,7 +1184,7 @@ It offers the following features:
     (build-system gnu-build-system)
     (native-inputs (list pkg-config))
     (inputs (list fontconfig freeglut fribidi glew))
-    (home-page "http://quesoglc.sourceforge.net")
+    (home-page "https://quesoglc.sourceforge.net")
     (synopsis "Implementation of the OpenGL Character Renderer (GLC)")
     (description
      "The OpenGL Character Renderer (GLC) is a state machine that provides
@@ -2047,7 +2047,7 @@ scripted in a Python-like language.")
     (description "Eureka is a map editor for the classic DOOM games, and a few
 related games such as Heretic and Hexen.  It comes with a 3d preview mode and
 a 2D editor view.")
-    (home-page "http://eureka-editor.sourceforge.net/")
+    (home-page "https://eureka-editor.sourceforge.net/")
     (license license:gpl2+)))
 
 (define-public guile-chickadee
@@ -2176,7 +2176,7 @@ joystick support.")))
      (list mesa libxi libxmu))
     (native-inputs
      (list pkg-config))
-    (home-page "http://plib.sourceforge.net/")
+    (home-page "https://plib.sourceforge.net/")
     (synopsis "Suite of portable game libraries")
     (description "PLIB is a set of libraries that will permit programmers to
 write games and other realtime interactive applications that are 100% portable
diff --git a/gnu/packages/games.scm b/gnu/packages/games.scm
index e1639a8c64..a3d093fa5e 100644
--- a/gnu/packages/games.scm
+++ b/gnu/packages/games.scm
@@ -287,7 +287,7 @@
        ("libxmu" ,libxmu)
        ("libxt" ,libxt)
        ("sdl" ,(sdl-union (list sdl sdl-mixer)))))
-    (home-page "http://abe.sourceforge.net")
+    (home-page "https://abe.sourceforge.net")
     (synopsis "Scrolling, platform-jumping, ancient pyramid exploring game")
     (description
      "Abe's Amazing Adventure is a scrolling,
@@ -401,7 +401,7 @@ mouse and joystick control, and original music.")
     (inputs
      `(("allegro" ,allegro-4)
        ("dumb" ,dumb-allegro4)))
-    (home-page "http://allegator.sourceforge.net/")
+    (home-page "https://allegator.sourceforge.net/")
     (synopsis "Retro platform game")
     (description
      "Guide Alex the Allegator through the jungle in order to save his
@@ -432,7 +432,7 @@ The game includes a built-in editor so you can design and share your own maps.")
            freeglut
            libpng
            libjpeg-turbo))
-    (home-page "http://www.armagetronad.org")
+    (home-page "https://www.armagetronad.org")
     (synopsis "Tron clone in 3D")
     (description "Armagetron Advanced is a multiplayer game in 3d that
 attempts to emulate and expand on the lightcycle sequence from the movie Tron.
@@ -544,7 +544,7 @@ regret their insolence.")
            zlib))
     (native-inputs
      (list pkg-config))
-    (home-page "http://baronygame.com")
+    (home-page "https://baronygame.com")
     (synopsis "3D first-person roguelike game")
     (description
      "Barony is a first-person roguelike role-playing game with cooperative
@@ -1287,7 +1287,7 @@ should be placed in @file{~/.local/share/falltergeist}.")
          ("glu" ,glu)
          ("libpng" ,libpng)
          ("sdl" ,(sdl-union (list sdl sdl-mixer sdl-net)))))
-      (home-page "http://foobillardplus.sourceforge.net/")
+      (home-page "https://foobillardplus.sourceforge.net/")
       (synopsis "3D billiard game")
       (description "FooBillard++ is an advanced 3D OpenGL billiard game
 based on the original foobillard 3.0a sources from Florian Berger.
@@ -1473,7 +1473,7 @@ real-time combat.")
      (list lua))
     (inputs
      (list glu mesa python sdl2 wxwidgets zlib))
-    (home-page "http://golly.sourceforge.net/")
+    (home-page "https://golly.sourceforge.net/")
     (synopsis "Software for exploring cellular automata")
     (description
      "Golly simulates Conway's Game of Life and many other types of cellular
@@ -1977,7 +1977,7 @@ Chess).  It is similar to standard chess but this variant is far more complicate
                       ":" (or (getenv "CPATH") ""))))))))
     (inputs
      (list (sdl-union (list sdl sdl-mixer))))
-    (home-page "http://lgames.sourceforge.net/LTris/")
+    (home-page "https://lgames.sourceforge.net/LTris/")
     (synopsis "Tetris clone based on the SDL library")
     (description
      "LTris is a tetris clone: differently shaped blocks are falling down the
@@ -2144,7 +2144,7 @@ role, and your gender.")
              #t)))))
     (inputs
      (list libpng mesa sdl))
-    (home-page "http://pipewalker.sourceforge.net/")
+    (home-page "https://pipewalker.sourceforge.net/")
     (synopsis "Logical tile puzzle")
     (description
      "PipeWalker is a simple puzzle game with many diffent themes: connect all
@@ -2193,7 +2193,7 @@ Every puzzle has a complete solution, although there may be more than one.")
           pcre
           portmidi
           (sdl-union (list sdl sdl-image sdl-mixer sdl-net))))
-   (home-page "http://prboom-plus.sourceforge.net/")
+   (home-page "https://prboom-plus.sourceforge.net/")
    (synopsis "Version of the classic 3D shoot'em'up game Doom")
    (description
     "PrBoom+ is a Doom source port developed from the original PrBoom project.")
@@ -2822,7 +2822,7 @@ saved automatically, and you can select between currently in progress games.")
                             Keywords=racing;tracks;~@
                             Keywords[de]=Rennstrecke;~%"
                            out)))))))))
-    (home-page "http://trigger-rally.sourceforge.net")
+    (home-page "https://trigger-rally.sourceforge.net")
     (synopsis "Fast-paced single-player racing game")
     (description "Trigger-rally is a 3D rally simulation with great physics
 for drifting on over 200 maps.  Different terrain materials like dirt,
@@ -3299,7 +3299,7 @@ is very small), and shoot at the adversaries that keep appear on the screen.")
                (invoke "./configure"
                        (string-append "--prefix=" out))))))))
     (inputs (list ncurses))
-    (home-page "http://www.asty.org/cmatrix")
+    (home-page "https://www.asty.org/cmatrix")
     (synopsis "Simulate the display from \"The Matrix\"")
     (description "CMatrix simulates the display from \"The Matrix\" and is
 based on the screensaver from the movie's website.  It works with terminal
@@ -3738,7 +3738,7 @@ match, cannon keep, and grave-itation pit.")
               (install-file "libglkterm.a" lib))
             #t))
         (delete 'configure))))          ; no configure script
-   (home-page "http://www.eblong.com/zarf/glk/")
+   (home-page "https://www.eblong.com/zarf/glk/")
    (synopsis "Curses Implementation of the Glk API")
    (description
     "Glk defines a portable API for applications with text UIs.  It was
@@ -4863,7 +4863,7 @@ logging, so games can be viewed again.")
              (symlink "README.md" "README")
              (display (which "autoreconf")) (newline)
              (invoke "autoreconf" "-vif"))))))
-    (home-page "http://pinball.sourceforge.net")
+    (home-page "https://pinball.sourceforge.net")
     (synopsis "Pinball simulator")
     (description "The Emilia Pinball Project is a pinball simulator.  There
 are only two levels to play with, but they are very addictive.")
@@ -4897,7 +4897,7 @@ are only two levels to play with, but they are very addictive.")
     (description "Pioneers is an emulation of the board game The Settlers of
 Catan.  It can be played on a local network, on the internet, and with AI
 players.")
-    (home-page "http://pio.sourceforge.net/")
+    (home-page "https://pio.sourceforge.net/")
     (license license:gpl2+)))
 
 (define-public einstein
@@ -5254,7 +5254,7 @@ fullscreen, use F5 or Alt+Enter.")
     (inputs
      `(("python" ,python-wrapper)
        ("sdl" ,(sdl-union (list sdl sdl-image sdl-mixer sdl-ttf sdl-net)))))
-    (home-page "http://icculus.org/tennix/")
+    (home-page "https://icculus.org/tennix/")
     (synopsis "Play tennis against the computer or a friend")
     (description "Tennix is a 2D tennis game.  You can play against the
 computer or against another player using the keyboard.  The game runs
@@ -5499,7 +5499,7 @@ in strikes against the evil corporation.")
     (native-inputs (list pkg-config))
     (inputs (list gettext-minimal glu quesoglc
                   (sdl-union (list sdl sdl-image sdl-mixer))))
-    (home-page "http://chromium-bsu.sourceforge.net/")
+    (home-page "https://chromium-bsu.sourceforge.net/")
     (synopsis "Fast-paced, arcade-style, top-scrolling space shooter")
     (description
      "In this game you are the captain of the cargo ship Chromium B.S.U. and
@@ -6037,7 +6037,7 @@ for Un*x systems with X11.")
     (list curl cyrus-sasl gtk+ sdl-mixer zlib))
    (native-inputs
     (list pkg-config))
-   (home-page "http://www.freeciv.org/")
+   (home-page "https://www.freeciv.org/")
    (synopsis "Turn-based empire building strategy game")
    (description "Freeciv is a turn-based empire building strategy game
 inspired by the history of human civilization.  The game commences in
@@ -6341,7 +6341,7 @@ over 100 user-created campaigns.")
        ("python" ,python-2)))
     (native-inputs
      (list swig))
-    (home-page "http://kiki.sourceforge.net/")
+    (home-page "https://kiki.sourceforge.net/")
     (synopsis "3D puzzle game")
     (description "Kiki the nano bot is a 3D puzzle game.  It is basically a
 mixture of the games Sokoban and Kula-World.  Your task is to help Kiki, a
@@ -7142,7 +7142,7 @@ Tales of Maj’Eyal offers engaging roguelike gameplay for the 21st century.")
     (description "Quakespasm is a modern engine for id software's Quake 1.
 It includes support for 64 bit CPUs, custom music playback, a new sound driver,
 some graphical niceities, and numerous bug-fixes and other improvements.")
-    (home-page "http://quakespasm.sourceforge.net/")
+    (home-page "https://quakespasm.sourceforge.net/")
     (license license:gpl2+)))
 
 (define-public vkquake
@@ -7725,7 +7725,7 @@ original.")
                                    (string-append xonotic "/data"))
                  (copy-recursively "server"
                                    (string-append xonotic "/server"))))))
-    (home-page "http://xonotic.org")
+    (home-page "https://xonotic.org")
     (synopsis "Data files for Xonotic")
     (description
      "Xonotic-data provides the data files required by the game Xonotic.")
@@ -7923,7 +7923,7 @@ games in the text adventure/interactive fiction genre.  This version of Frotz
 complies with standard 1.0 of Graham Nelson's specification.  It plays all
 Z-code games V1-V8, including V6, with sound support through libao, and uses
 ncurses for text display.")
-    (home-page "http://frotz.sourceforge.net")
+    (home-page "https://frotz.sourceforge.net")
     (license license:gpl2+)))
 
 (define-public naev
@@ -8024,7 +8024,7 @@ scrolling.  Maybe you'd like to experience what it's like to play Adventure on
 a teletype.  A much cooler use for compiling Frotz with the dumb interface is
 that it can be wrapped in CGI scripting, PHP, and the like to allow people
 to play games on webpages.  It can also be made into a chat bot.")
-    (home-page "http://frotz.sourceforge.net")
+    (home-page "https://frotz.sourceforge.net")
     (license license:gpl2+)))
 
 (define-public frotz-sdl
@@ -8084,7 +8084,7 @@ using SDL fully supports all these versions of the Z-Machine including the
 graphical version 6.  Graphics and sound are created through the use of the SDL
 libraries.  AIFF sound effects and music in MOD and OGG formats are supported
 when packaged in Blorb container files or optionally from individual files.")
-      (home-page "http://frotz.sourceforge.net")
+      (home-page "https://frotz.sourceforge.net")
       (license license:gpl2+))))
 
 (define-public frozen-bubble
@@ -8563,7 +8563,7 @@ download and unpack them separately.")
        ("zlib" ,zlib)))
     (native-inputs
      (list pkg-config zip))
-    (home-page "http://btanks.sourceforge.net")
+    (home-page "https://btanks.sourceforge.net")
     (synopsis "Multiplayer tank battle game")
     (description "Battle Tanks (also known as \"btanks\") is a funny battle
 game, where you can choose one of three vehicles and eliminate your enemy
@@ -8905,7 +8905,7 @@ fight each other on an arena-like map.")
      (list hicolor-icon-theme
            python-wrapper
            (sdl-union (list sdl2 sdl2-image sdl2-mixer sdl2-ttf))))
-    (home-page "http://www.flarerpg.org/")
+    (home-page "https://www.flarerpg.org/")
     (synopsis "Action Roleplaying Engine")
     (description "Flare (Free Libre Action Roleplaying Engine) is a simple
 game engine built to handle a very specific kind of game: single-player 2D
@@ -10333,7 +10333,7 @@ and chess engines.")
      "ChessX is a chess database.  With ChessX you can operate on your
 collection of chess games in many ways: browse, edit, add, organize, analyze,
 etc.  You can also play games on FICS or against an engine.")
-    (home-page "http://chessx.sourceforge.net/")
+    (home-page "https://chessx.sourceforge.net/")
     (license license:gpl2+)))
 
 (define-public stockfish
@@ -10424,7 +10424,7 @@ ChessX.")
         (string-append "CFLAGS="
                        "-I" (assoc-ref %build-inputs "sdl-mixer")
                        "/include/SDL"))))
-    (home-page "http://lgames.sourceforge.net/Barrage/")
+    (home-page "https://lgames.sourceforge.net/Barrage/")
     (synopsis "Violent point-and-click shooting game with nice effects")
     (description
      "Barrage is a rather destructive action game that puts you on a shooting
@@ -10797,7 +10797,7 @@ inside the Zenith Colony.")
     (build-system gnu-build-system)
     (inputs
      (list libx11 libxt xorgproto))
-    (home-page "http://cgoban1.sourceforge.net/")
+    (home-page "https://cgoban1.sourceforge.net/")
     (synopsis "Go client for X11")
     (description "Provides a large set of Go-related services for X11:
 @itemize
@@ -10857,7 +10857,7 @@ such as GnuGo.
      `(("sdl" ,(sdl-union (list sdl sdl-mixer)))))
     (native-inputs
      (list imagemagick))
-    (home-page "http://hcsoftware.sourceforge.net/passage/")
+    (home-page "https://hcsoftware.sourceforge.net/passage/")
     (synopsis "Memento mori game")
     (description
      "Passage is meant to be a memento mori game.  It presents an entire life,
diff --git a/gnu/packages/geo.scm b/gnu/packages/geo.scm
index 044606936b..753ab558ad 100644
--- a/gnu/packages/geo.scm
+++ b/gnu/packages/geo.scm
@@ -830,7 +830,7 @@ pyproj, Rtree, and Shapely.")
       (list python-fiona python-pandas python-pyproj python-shapely))
     (native-inputs
       (list python-pytest))
-    (home-page "http://geopandas.org")
+    (home-page "https://geopandas.org")
     (synopsis "Geographic pandas extensions")
     (description "The goal of GeoPandas is to make working with
 geospatial data in Python easier.  It combines the capabilities of
@@ -2458,7 +2458,7 @@ visualization.")
 Information System (GIS) software.  It has been designed for an easy and
 effective implementation of spatial algorithms and it offers a comprehensive,
 growing set of geoscientific methods.")
-    (home-page "http://www.saga-gis.org")
+    (home-page "https://www.saga-gis.org")
     (license (list license:gpl2+ license:lgpl2.1+))))
 
 (define-public qgis
diff --git a/gnu/packages/gl.scm b/gnu/packages/gl.scm
index 6956b989d6..4ae96032cd 100644
--- a/gnu/packages/gl.scm
+++ b/gnu/packages/gl.scm
@@ -127,7 +127,7 @@ as ASCII text.")
     (propagated-inputs
      ;; Headers from Mesa and GLU are needed.
      (list glu mesa))
-    (home-page "http://freeglut.sourceforge.net/")
+    (home-page "https://freeglut.sourceforge.net/")
     (synopsis "Alternative to the OpenGL Utility Toolkit (GLUT)")
     (description
      "Freeglut is a completely Free/OpenSourced alternative to
@@ -945,7 +945,7 @@ and visualizations.")
      (list libpng mesa zlib))
     (arguments
      `(#:tests? #f))                    ; no tests
-    (home-page "http://www.geuz.org/gl2ps/")
+    (home-page "https://www.geuz.org/gl2ps/")
     (synopsis "OpenGL to PostScript printing library")
     (description "GL2PS is a C library providing high quality vector
 output for any OpenGL application.  GL2PS uses sorting algorithms
diff --git a/gnu/packages/gnome.scm b/gnu/packages/gnome.scm
index 851b715283..f329ff1dc4 100644
--- a/gnu/packages/gnome.scm
+++ b/gnu/packages/gnome.scm
@@ -6416,7 +6416,7 @@ throughout GNOME for API documentation).")
                    #t)
                  (format #t "test suite not run~%"))
              #t)))))
-    (home-page "http://www.clutter-project.org")
+    (home-page "https://www.clutter-project.org")
     (synopsis "Object oriented GL/GLES Abstraction/Utility Layer")
     (description
      "Cogl is a small library for using 3D graphics hardware to draw pretty
@@ -6502,7 +6502,7 @@ presentations, kiosk style applications and so on.")
     (propagated-inputs
      ;; clutter-gtk.pc refers to all these.
      (list clutter gtk+))
-    (home-page "http://www.clutter-project.org")
+    (home-page "https://www.clutter-project.org")
     (synopsis "OpenGL-based interactive canvas library GTK+ widget")
     (description
      "Clutter is an OpenGL-based interactive canvas library, designed for
@@ -6528,7 +6528,7 @@ presentations, kiosk style applications and so on.")
            pkg-config gobject-introspection))
     (inputs
      (list clutter gstreamer gst-plugins-base))
-    (home-page "http://www.clutter-project.org")
+    (home-page "https://www.clutter-project.org")
     (synopsis "Integration library for using GStreamer with Clutter")
     (description
      "Clutter-Gst is an integration library for using GStreamer with Clutter.
@@ -11155,7 +11155,7 @@ supports both X and Wayland display servers.")
      (list desktop-file-utils intltool pkg-config))
     (inputs
      (list enchant gtk+ python-wrapper libxml2 gucharmap))
-    (home-page "http://bluefish.openoffice.nl")
+    (home-page "https://bluefish.openoffice.nl")
     (synopsis "Web development studio")
     (description
      "Bluefish is an editor aimed at programmers and web developers,
@@ -11779,7 +11779,7 @@ configurable file renaming.")
      "Workrave is a program that assists in the recovery and prevention of
 repetitive strain injury (@dfn{RSI}).  The program frequently alerts you to take
 micro-pauses and rest breaks, and restricts you to your daily limit.")
-    (home-page "http://www.workrave.org")
+    (home-page "https://www.workrave.org")
     (license license:gpl3+)))
 
 (define-public ghex
diff --git a/gnu/packages/gnustep.scm b/gnu/packages/gnustep.scm
index a6f9b0e2fb..2819993d73 100644
--- a/gnu/packages/gnustep.scm
+++ b/gnu/packages/gnustep.scm
@@ -248,7 +248,7 @@ graph), and battery status (high - green, low - yellow, or critical - red).")
      (list libx11 libxext libxpm))
     (native-inputs
      (list pkg-config))
-    (home-page "http://www.thregr.org/~wavexx/software/wmnd/")
+    (home-page "https://www.thregr.org/~wavexx/software/wmnd/")
     (synopsis "Network interface monitor")
     (description
      "WMND is a dockapp for monitoring network interfaces under WindowMaker and
@@ -314,7 +314,7 @@ display, and can run a user-specified program on mouse click.")
     (version "1.2.4")
     (source (origin
               (method url-fetch)
-              (uri (string-append "http://www.improbability.net/"
+              (uri (string-append "https://www.improbability.net/"
                                   name "/" name "-" version ".tar.gz"))
               (sha256
                (base32
@@ -326,7 +326,7 @@ display, and can run a user-specified program on mouse click.")
      (list gtk+-2 libgtop))
     (native-inputs
      (list pkg-config))
-    (home-page "http://www.improbability.net/")
+    (home-page "https://www.improbability.net/")
     (synopsis "Display flames to represent resource usage")
     (description
      "wmfire is an applet for Window Maker that can monitor the average cpu
diff --git a/gnu/packages/graph.scm b/gnu/packages/graph.scm
index cb2723afcd..104fe07b58 100644
--- a/gnu/packages/graph.scm
+++ b/gnu/packages/graph.scm
@@ -590,7 +590,7 @@ of graphs.")
      (list pkg-config))
     (inputs
      (list gd))
-    (home-page "http://www.mcternan.me.uk/mscgen/")
+    (home-page "https://www.mcternan.me.uk/mscgen/")
     (synopsis "Message Sequence Chart Generator")
     (description "Mscgen is a small program that parses Message Sequence Chart
 descriptions and produces PNG, SVG, EPS or server side image maps (ismaps) as
diff --git a/gnu/packages/graphics.scm b/gnu/packages/graphics.scm
index 94b93970b1..bcc27cc3bf 100644
--- a/gnu/packages/graphics.scm
+++ b/gnu/packages/graphics.scm
@@ -632,7 +632,7 @@ and export to various formats including the format used by Magicavoxel.")
     (build-system cmake-build-system)
     (inputs
      (list zlib))
-    (home-page "http://www.assimp.org/")
+    (home-page "https://www.assimp.org/")
     (synopsis "Asset import library")
     (description
      "The Open Asset Import Library loads more than 40 3D file formats into
@@ -1035,7 +1035,7 @@ other vector formats such as:
      `(#:configure-flags (list "-DUSE_HDF5=ON")))
     (inputs
      (list hdf5 imath zlib))
-    (home-page "http://www.alembic.io/")
+    (home-page "https://www.alembic.io/")
     (synopsis "Framework for storing and sharing scene data")
     (description "Alembic is a computer graphics interchange framework.  It
 distills complex, animated scenes into a set of baked geometric results.")
@@ -1584,7 +1584,7 @@ realistic reflections, shading, perspective and other effects.")
     ;; Headers include OpenEXR and IlmBase headers.
     (propagated-inputs (list openexr-2))
 
-    (home-page "http://ampasctl.sourceforge.net")
+    (home-page "https://ampasctl.sourceforge.net")
     (synopsis "Color Transformation Language")
     (description
      "The Color Transformation Language, or CTL, is a small programming
@@ -1700,7 +1700,7 @@ and understanding different BRDFs (and other component functions).")
      (list libx11 freetype sdl))
 
     ;; Antigrain.com was discontinued.
-    (home-page "http://agg.sourceforge.net/antigrain.com/index.html")
+    (home-page "https://agg.sourceforge.net/antigrain.com/index.html")
     (synopsis "High-quality 2D graphics rendering engine for C++")
     (description
      "Anti-Grain Geometry is a high quality rendering engine written in C++.
@@ -1939,7 +1939,7 @@ and GPU architectures.")
 OpenGL.  CSG is an approach for modeling complex 3D-shapes using simpler ones.
 For example, two shapes can be combined by uniting them, by intersecting them,
 or by subtracting one shape from the other.")
-      (home-page "http://www.opencsg.org/")
+      (home-page "https://www.opencsg.org/")
       (license license:gpl2))))
 
 (define-public coin3D
diff --git a/gnu/packages/graphviz.scm b/gnu/packages/graphviz.scm
index 1691658576..f1038a83eb 100644
--- a/gnu/packages/graphviz.scm
+++ b/gnu/packages/graphviz.scm
@@ -313,7 +313,7 @@ Graphviz and LaTeX.")
     (propagated-inputs
      ;; The gts.pc file has glib-2.0 as required.
      (list glib))
-    (home-page "http://gts.sourceforge.net/")
+    (home-page "https://gts.sourceforge.net/")
 
     ;; Note: Despite the name, this is not official GNU software.
     (synopsis "Triangulated Surface Library")
diff --git a/gnu/packages/gtk.scm b/gnu/packages/gtk.scm
index f575194c73..5101976fb9 100644
--- a/gnu/packages/gtk.scm
+++ b/gnu/packages/gtk.scm
@@ -2461,7 +2461,7 @@ glass artworks done by Venicians glass blowers.")
      (list gobject-introspection gtk+ pango))
     (propagated-inputs
      (list enchant))           ; gtkspell3-3.0.pc refers to it
-    (home-page "http://gtkspell.sourceforge.net")
+    (home-page "https://gtkspell.sourceforge.net")
     (synopsis "Spell-checking addon for GTK's TextView widget")
     (description
      "GtkSpell provides word-processor-style highlighting and replacement of
diff --git a/gnu/packages/guile-xyz.scm b/gnu/packages/guile-xyz.scm
index 67b47581e5..54aaadadc0 100644
--- a/gnu/packages/guile-xyz.scm
+++ b/gnu/packages/guile-xyz.scm
@@ -2725,7 +2725,7 @@ See http://minikanren.org/ for more on miniKanren generally.")
        #:source-directory "src"))
     (native-inputs
      (list guile-3.0))
-    (home-page "http://synthcode.com/scheme/irregex")
+    (home-page "https://synthcode.com/scheme/irregex")
     (synopsis "S-expression based regular expressions")
     (description
      "Irregex is an s-expression based alternative to your classic
diff --git a/gnu/packages/haskell-apps.scm b/gnu/packages/haskell-apps.scm
index 58992c2097..8f9ca50c00 100644
--- a/gnu/packages/haskell-apps.scm
+++ b/gnu/packages/haskell-apps.scm
@@ -157,7 +157,7 @@ installation of Haskell libraries and programs.")
     (build-system haskell-build-system)
     (inputs
      (list ghc-polyparse ghc-old-locale ghc-old-time))
-    (home-page "http://projects.haskell.org/cpphs/")
+    (home-page "https://projects.haskell.org/cpphs/")
     (synopsis "Liberalised re-implementation of cpp, the C pre-processor")
     (description "Cpphs is a re-implementation of the C pre-processor that is
 both more compatible with Haskell, and itself written in Haskell so that it
diff --git a/gnu/packages/haskell-check.scm b/gnu/packages/haskell-check.scm
index affe6a07b5..e0443c1c29 100644
--- a/gnu/packages/haskell-check.scm
+++ b/gnu/packages/haskell-check.scm
@@ -691,7 +691,7 @@ using Template Haskell")
      ;; We cannot use ghc-call-stack there, because it depends on
      ;; ghc-nanospec, which depends on ghc-hunit.
      (list ghc-call-stack-boot))
-    (home-page "http://hunit.sourceforge.net/")
+    (home-page "https://hunit.sourceforge.net/")
     (synopsis "Unit testing framework for Haskell")
     (description
      "HUnit is a unit testing framework for Haskell, inspired by the
diff --git a/gnu/packages/haskell-web.scm b/gnu/packages/haskell-web.scm
index d2f706f222..a83cffd1ee 100644
--- a/gnu/packages/haskell-web.scm
+++ b/gnu/packages/haskell-web.scm
@@ -312,7 +312,7 @@ libraries, such as http-conduit.")
            ghc-network
            ghc-network-bsd
            ghc-utf8-string))
-    (home-page "http://hackage.haskell.org/package/http-client-restricted")
+    (home-page "https://hackage.haskell.org/package/http-client-restricted")
     (synopsis "Restrict the servers used by http-client")
     (description
      "This library makes it possible to restrict the HTTP servers that can be
@@ -979,7 +979,7 @@ entity decoding bugfixes applied.")
     (native-inputs
      (list ghc-hunit ghc-quickcheck ghc-test-framework
            ghc-test-framework-hunit ghc-test-framework-quickcheck2))
-    (home-page "http://jaspervdj.be/blaze")
+    (home-page "https://jaspervdj.be/blaze")
     (synopsis "Fast HTML combinator library")
     (description "This library provides HTML combinators for Haskell.")
     (license license:bsd-3)))
@@ -1818,7 +1818,7 @@ requirements of downstream users (e.g. Debian).")
            ghc-utf8-string
            ghc-zlib))
     (native-inputs (list ghc-hunit))
-    (home-page "http://happstack.com")
+    (home-page "https://happstack.com")
     (synopsis "Web related tools and services for Haskell")
     (description
      "Happstack Server provides an HTTP server and a rich set of functions for
@@ -1933,7 +1933,7 @@ declarative and monadic interface.")
        #:cabal-revision
        ("1" "1f7q44ar6qfip8fsllg43jyn7r15ifn2r0vz32cbmx0sb0d38dax")))
     (home-page
-     "http://hackage.haskell.org/package/sourcemap")
+     "https://hackage.haskell.org/package/sourcemap")
     (synopsis
      "Implementation of source maps as proposed by Google and Mozilla")
     (description
diff --git a/gnu/packages/haskell-xyz.scm b/gnu/packages/haskell-xyz.scm
index 79b4ae7bed..58a0e18f29 100644
--- a/gnu/packages/haskell-xyz.scm
+++ b/gnu/packages/haskell-xyz.scm
@@ -485,7 +485,7 @@ style.")
     (inputs
      (list ghc-bifunctors ghc-tagged))
     (home-page
-     "http://hackage.haskell.org/package/assoc")
+     "https://hackage.haskell.org/package/assoc")
     (synopsis
      "Swap and assoc: Symmetric and Semigroupy Bifunctors")
     (description
@@ -1446,7 +1446,7 @@ imported with the correct Haskell types.")
      (list ghc-utf8-string cairo))
     (native-inputs
      (list ghc-gtk2hs-buildtools pkg-config))
-    (home-page "http://projects.haskell.org/gtk2hs/")
+    (home-page "https://projects.haskell.org/gtk2hs/")
     (synopsis "Haskell bindings to the Cairo vector graphics library")
     (description
      "Cairo is a library to render high quality vector graphics.  There exist
@@ -1651,7 +1651,7 @@ provides for better error messages at the expense of some speed.")
            ghc-tasty-hunit
            ghc-tasty-quickcheck
            ghc-vector))
-    (home-page "http://hackage.haskell.org/package/cborg")
+    (home-page "https://hackage.haskell.org/package/cborg")
     (synopsis "Concise Binary Object Representation")
     (description
      "This package (formerly binary-serialise-cbor) provides an
@@ -2738,7 +2738,7 @@ function performs the conversion you desire.")
              (substitute* "Setup.hs"
                (("defaultMainWithHooks defaultUserHooks")
                 "defaultMain")))))))
-    (home-page "http://hackage.haskell.org/package/csv")
+    (home-page "https://hackage.haskell.org/package/csv")
     (synopsis "CSV loader and dumper")
     (description
      "This library parses and dumps documents that are formatted according to
@@ -4789,7 +4789,7 @@ info for more informative bug reports.")
     (native-inputs
      (list ghc-hunit ghc-quickcheck ghc-test-framework
            ghc-test-framework-hunit ghc-test-framework-quickcheck2))
-    (home-page "http://iki.fi/matti.niemenmaa/glob/")
+    (home-page "https://iki.fi/matti.niemenmaa/glob/")
     (synopsis "Haskell library matching glob patterns against file paths")
     (description "This package provides a Haskell library for @dfn{globbing}:
 matching patterns against file paths.")
@@ -4957,7 +4957,7 @@ monoid with invertibility.")
      (list ghc-random ghc-hashtables))
     (native-inputs
      (list ghc-alex ghc-happy))
-    (home-page "http://projects.haskell.org/gtk2hs/")
+    (home-page "https://projects.haskell.org/gtk2hs/")
     (synopsis "Tools to build the Gtk2Hs suite of user interface libraries")
     (description
      "This package provides a set of helper programs necessary to build the
@@ -5743,7 +5743,7 @@ using GSL.")
     (inputs
      (list ghc-vector ghc-storable-complex ghc-hmatrix gsl))
     (native-inputs (list pkg-config))
-    (home-page "http://code.haskell.org/hmatrix-gsl-stats")
+    (home-page "https://code.haskell.org/hmatrix-gsl-stats")
     (synopsis "GSL Statistics interface for Haskell")
     (description "This Haskell library provides a purely functional
 interface for statistics based on hmatrix and GSL.")
@@ -6358,7 +6358,7 @@ Haskell.")
     (build-system haskell-build-system)
     (native-inputs
      (list ghc-quickcheck))
-    (home-page "http://www.chr-breitkopf.de/comp/IntervalMap")
+    (home-page "https://www.chr-breitkopf.de/comp/IntervalMap")
     (synopsis "Containers for intervals, with efficient search")
     (description
      "This package provides ordered containers of intervals, with efficient
@@ -6802,7 +6802,7 @@ indexed variants.")
          "0ni6s873hy2h3b316835ssmlyr05yinb3a8jq5b01p9ppp9zrd0r"))))
     (build-system haskell-build-system)
     (home-page
-     "http://hackage.haskell.org/package/lens-family-core")
+     "https://hackage.haskell.org/package/lens-family-core")
     (synopsis "Haskell 98 Lens Families")
     (description
      "This package provides first class functional references.  In addition to
@@ -7327,7 +7327,7 @@ than its name.")
         (base32
          "00wzfy9facwgimrilz7bxaigr79w10733h8zfgyhll644p2rnz38"))))
     (build-system haskell-build-system)
-    (home-page "http://hackage.haskell.org/package/managed")
+    (home-page "https://hackage.haskell.org/package/managed")
     (synopsis "Monad for managed values")
     (description
      "In Haskell you very often acquire values using the with... idiom using
@@ -8015,7 +8015,7 @@ semi-direct products, \"deletable\" monoids, \"split\" monoids, and
          "1hnm31pqcffphyc463wf0vbik9fzm5lb2r4wjdc1y4dqzmjdzz37"))))
     (build-system haskell-build-system)
     (home-page
-     "http://hackage.haskell.org/package/mountpoints")
+     "https://hackage.haskell.org/package/mountpoints")
     (synopsis "Haskell library for listing mount points")
     (description "This library provides Haskell bindings for checking
 currently mounted filesystems.")
@@ -8294,7 +8294,7 @@ IPv4, IPv6 and MAC addresses.")
     (inputs
      (list ghc-network ghc-network-bsd))
     (home-page
-     "http://hackage.haskell.org/package/network-multicast")
+     "https://hackage.haskell.org/package/network-multicast")
     (synopsis "Simple multicast library for Haskell")
     (description
      "This package provides the Network.Multicast Haskell module for
@@ -8641,7 +8641,7 @@ DSLs, etc.")
          "1r5hhn6xvc01grggxdyy48daibwzi0aikgidq0ahpa6bfynm8d1f"))))
     (build-system haskell-build-system)
     (home-page
-     "http://hackage.haskell.org/package/optional-args")
+     "https://hackage.haskell.org/package/optional-args")
     (synopsis "Optional function arguments")
     (description
      "This library provides a type for specifying @code{Optional} function
@@ -10509,7 +10509,7 @@ configurations to coexist without resorting to mutable global variables or
            ghc-time-locale-compat
            ghc-unordered-containers
            ghc-utf8-string))
-    (home-page "http://regex.uk")
+    (home-page "https://regex.uk")
     (synopsis "Toolkit for regex-base")
     (description
      "This package provides a regular expression toolkit for @code{regex-base}
@@ -12001,7 +12001,7 @@ internal state).")
        ("1"
         "09s5jjcsg4g4qxchq9g2l4i9d5zh3rixpkbiysqcgl69kj8mwv74")))
     (home-page
-     "http://hackage.haskell.org/package/spoon")
+     "https://hackage.haskell.org/package/spoon")
     (synopsis
      "Catch errors thrown from pure computations")
     (description
@@ -13379,7 +13379,7 @@ BitTorrent files.")
          "0v66j5k0xqk51pmca55wq192qyw2p43s2mgxlz4f95q2c1fpjs5n"))))
     (build-system haskell-build-system)
     (home-page
-     "http://hackage.haskell.org/package/transformers")
+     "https://hackage.haskell.org/package/transformers")
     (synopsis "Concrete functor and monad transformers")
     (description
      "Transformers provides functor and monad transformers, inspired by the
@@ -13592,7 +13592,7 @@ statically known size.")
     (native-inputs
      (list ghc-doctest ghc-fail))
     (home-page
-     "http://hackage.haskell.org/package/turtle")
+     "https://hackage.haskell.org/package/turtle")
     (synopsis "Shell programming, Haskell-style")
     (description
      "Turtle is a reimplementation of the Unix command line environment in
@@ -14023,7 +14023,7 @@ parser that uses ByteStrings for parsing and representing the URI data.")
          "0rwyc5z331yfnm4hpx0sph6i1zvkd1z10vvglhnp0vc9wy644k0q"))))
     (build-system haskell-build-system)
     (home-page
-     "http://hackage.haskell.org/package/utf8-light")
+     "https://hackage.haskell.org/package/utf8-light")
     (synopsis "Lightweight unicode support for Haskell")
     (description
      "This package profides a class for encoding and decoding UTF8 strings
@@ -14493,7 +14493,7 @@ Haskell value or function.")
      `(#:cabal-revision
        ("1"
         "095qd17zrdhqmcvmslbyzfa5sh9glvvsnsvnlz31gzsmi8nnsgim")))
-    (home-page "http://hackage.haskell.org/package/wizards")
+    (home-page "https://hackage.haskell.org/package/wizards")
     (synopsis "High level, generic library for interrogative user interfaces")
     (description
      "@code{wizards} is a package designed for the quick and painless
@@ -15476,7 +15476,7 @@ platform independent way.")
         (base32 "1nk1cv35szp80qkhbyh5gn6vn194zzl0wz186qrqdrdx3a9r9w4g"))))
     (build-system haskell-build-system)
     (inputs (list ghc-boot-th))
-    (home-page "http://hackage.haskell.org/package/template-haskell")
+    (home-page "https://hackage.haskell.org/package/template-haskell")
     (synopsis "Support library for Template Haskell")
     (description
      "This package provides modules containing facilities for manipulating
@@ -15528,7 +15528,7 @@ information.")
        (sha256
         (base32 "0vhhmsd32p7zn9vhpv4d0k0b55n2dyhzy42xblndrma617kz8gli"))))
     (build-system haskell-build-system)
-    (home-page "http://hackage.haskell.org/package/ghc-boot-th")
+    (home-page "https://hackage.haskell.org/package/ghc-boot-th")
     (synopsis
      "Shared functionality between GHC and Template Haskell")
     (description
@@ -15558,7 +15558,7 @@ upon by user code.")
     (arguments
      `(#:cabal-revision
        ("5" "1h2d37szfrcwn9rphnijn4q9l947b0wwqjs1aqmm62xkhbad7jf6")))
-    (home-page "http://hackage.haskell.org/package/binary-orphans")
+    (home-page "https://hackage.haskell.org/package/binary-orphans")
     (synopsis "Compatibility package for binary")
     (description
      "This package provides instances defined in later versions of
@@ -15919,7 +15919,7 @@ server and to receive the results of these queries.")
     (arguments
      `(#:cabal-revision
        ("2" "1kwjlj0bsc1yd4dgfc0ydawq9acfjlf0bymwc830dryp16wpj9zv")))
-    (home-page "http://hackage.haskell.org/package/postgresql-simple")
+    (home-page "https://hackage.haskell.org/package/postgresql-simple")
     (synopsis "Mid-Level PostgreSQL client library")
     (description
      "This package provides a mid-Level PostgreSQL client library, forked from
diff --git a/gnu/packages/hexedit.scm b/gnu/packages/hexedit.scm
index 3f3c364272..79c14a2996 100644
--- a/gnu/packages/hexedit.scm
+++ b/gnu/packages/hexedit.scm
@@ -90,7 +90,7 @@ the file and search through it.")
 with a special focus on executable binaries.  Its goal is to combine the
 low-level functionality of a debugger with the usability of an @dfn{Integrated
 Development Environment} (IDE).")
-    (home-page "http://hte.sourceforge.net/")
+    (home-page "https://hte.sourceforge.net/")
     (license license:gpl2)))
 
 (define-public bvi
@@ -112,5 +112,5 @@ Development Environment} (IDE).")
     (synopsis "Binary file editor")
     (description "@command{bvi} is a display-oriented editor for binary files,
 based on the @command{vi} text editor.")
-    (home-page "http://bvi.sourceforge.net/")
+    (home-page "https://bvi.sourceforge.net/")
     (license license:gpl3+)))
diff --git a/gnu/packages/hunspell.scm b/gnu/packages/hunspell.scm
index c6db9f1495..e49caecc62 100644
--- a/gnu/packages/hunspell.scm
+++ b/gnu/packages/hunspell.scm
@@ -263,7 +263,7 @@ spell-checking library.")
       (synopsis "Hunspell dictionary for Hungarian (hu_HU)")
       (description "This package provides a dictionary for the Hunspell
 spell-checking library.")
-      (home-page "http://magyarispell.sourceforge.net/")
+      (home-page "https://magyarispell.sourceforge.net/")
       (license (list license:gpl2 license:gpl3)))))
 
 (define* (hunspell-dictionary dict-name full-name #:key synopsis home-page license)
diff --git a/gnu/packages/image-processing.scm b/gnu/packages/image-processing.scm
index 70c820e76b..6f51499142 100644
--- a/gnu/packages/image-processing.scm
+++ b/gnu/packages/image-processing.scm
@@ -242,7 +242,7 @@ licences similar to the Modified BSD licence."))))
     (native-inputs
      (list pkg-config
            python-wrapper))
-    (home-page "http://mia.sourceforge.net")
+    (home-page "https://mia.sourceforge.net")
     (synopsis "Toolkit for gray scale medical image analysis")
     (description "MIA provides a combination of command line tools, plug-ins,
 and libraries that make it possible run image processing tasks interactively
diff --git a/gnu/packages/image-viewers.scm b/gnu/packages/image-viewers.scm
index 1879b9949c..0758cf5b27 100644
--- a/gnu/packages/image-viewers.scm
+++ b/gnu/packages/image-viewers.scm
@@ -276,7 +276,7 @@ actions.")
            `(,glib "bin") ; glib-gettextize
            intltool
            pkg-config))
-    (home-page "http://www.geeqie.org/")
+    (home-page "https://www.geeqie.org/")
     (synopsis "Lightweight GTK+ based image viewer")
     (description
      "Geeqie is a lightweight GTK+ based image viewer for Unix like operating
@@ -306,7 +306,7 @@ collection.  Geeqie was initially based on GQview.")
     (synopsis "Simple and fast image viewer for X")
     (description "gpicview is a lightweight GTK+ 2.x based image viewer.
 It is the default image viewer on LXDE desktop environment.")
-    (home-page "http://lxde.sourceforge.net/gpicview/")
+    (home-page "https://lxde.sourceforge.net/gpicview/")
     (license license:gpl2+)))
 
 (define-public sxiv
@@ -592,7 +592,7 @@ and WebP.")
                       (dirname
                        (search-input-file inputs "include/OpenEXR/ImathInt64.h"))
                       ":" (or (getenv "CPLUS_INCLUDE_PATH") ""))))))))
-    (home-page "http://qtpfsgui.sourceforge.net")
+    (home-page "https://qtpfsgui.sourceforge.net")
     (synopsis "High dynamic range (HDR) imaging application")
     (description
      "Luminance HDR (formerly QtPFSGui) is a graphical user interface
@@ -863,7 +863,7 @@ with tiling window managers.  Features include:
        #:make-flags
        (list
         (string-append "PREFIX=" (assoc-ref %outputs "out")))))
-    (home-page "http://spiegl.de/qiv/")
+    (home-page "https://spiegl.de/qiv/")
     (synopsis "Graphical image viewer for X")
     (description
      "Quick Image Viewer is a small and fast GDK/Imlib2 image viewer.
diff --git a/gnu/packages/image.scm b/gnu/packages/image.scm
index 42b7ee055e..5071dd588f 100644
--- a/gnu/packages/image.scm
+++ b/gnu/packages/image.scm
@@ -946,7 +946,7 @@ compose, and analyze GIF images.")
                     (format #f "EXECINPUT=~a~%" execinput)))
                  (invoke "sh" "testit.sh"))))))))
     (native-inputs (list drm-tools)) ;for tests
-    (home-page "http://libuemf.sourceforge.net/")
+    (home-page "https://libuemf.sourceforge.net/")
     (synopsis "Library for working with WFM, EMF and EMF+ images")
     (description "The libUEMF library is a portable C99 implementation for
 reading and writing @acronym{WFM, Windows Metafile}, @acronym{EMF, Enhanced
@@ -1419,7 +1419,7 @@ and XMP metadata of images in various formats.")
     (description "Developer's Image Library (DevIL) is a library to develop
 applications with support for many types of images.  DevIL can load, save,
 convert, manipulate, filter and display a wide variety of image formats.")
-    (home-page "http://openil.sourceforge.net")
+    (home-page "https://openil.sourceforge.net")
     (license license:lgpl2.1+)))
 
 (define-public jasper
@@ -1531,7 +1531,7 @@ differences in file encoding, image quality, and other small variations.")
      (list gettext-minimal libtool perl))
     (inputs
      (list libjpeg-turbo libmhash libmcrypt zlib))
-    (home-page "http://steghide.sourceforge.net")
+    (home-page "https://steghide.sourceforge.net")
     (synopsis "`Hide' (nonconfidential) data in image or audio files")
     (description
      "Steghide is a program to `hide' data in various kinds of image and audio
@@ -1580,7 +1580,7 @@ specifically at this tool.")
 files to a smaller size, without losing any information.  This program
 also converts external formats (BMP, GIF, PNM and TIFF) to optimized
 PNG, and performs PNG integrity checks and corrections.")
-    (home-page "http://optipng.sourceforge.net/")
+    (home-page "https://optipng.sourceforge.net/")
     (license license:zlib)))
 
 (define-public imgp
@@ -1756,7 +1756,7 @@ and decompress to 32-bit and big-endian pixel buffers (RGBX, XBGR, etc.).")
 files in the nifti-1 data format - a binary file format for storing
 medical image data, e.g. magnetic resonance image (MRI) and functional MRI
 (fMRI) brain images.")
-    (home-page "http://niftilib.sourceforge.net")
+    (home-page "https://niftilib.sourceforge.net")
     (license license:public-domain)))
 
 (define-public gpick
@@ -2029,7 +2029,7 @@ to the standard output.  It works well together with grim.")
                             "/share/X11/rgb.txt"))))
     (inputs (list xorg-rgb libpng))
     (native-inputs (list pngsuite))
-    (home-page "http://sng.sourceforge.net")
+    (home-page "https://sng.sourceforge.net")
     (synopsis "Markup language for representing PNG contents")
     (description "SNG (Scriptable Network Graphics) is a minilanguage designed
 specifically to represent the entire contents of a PNG (Portable Network
@@ -2361,7 +2361,7 @@ Format) file format decoder and encoder.")
        (list "intl"                     ; build internationalized version
              "man")                     ; build the man page
        #:tests? #f))                    ; no test suite
-    (home-page "http://mtpaint.sourceforge.net/")
+    (home-page "https://mtpaint.sourceforge.net/")
     (synopsis "Create pixel art and manipulate digital images")
     (description
      "Mtpaint is a graphic editing program which uses the GTK+ toolkit.
diff --git a/gnu/packages/java-bootstrap.scm b/gnu/packages/java-bootstrap.scm
index 3a3df2bcb0..481d8cd075 100644
--- a/gnu/packages/java-bootstrap.scm
+++ b/gnu/packages/java-bootstrap.scm
@@ -86,7 +86,7 @@
                (base32
                 "1qqldrp74pzpy5ly421srqn30qppmm9cvjiqdngk8hf47dv2rc0c"))))
     (build-system gnu-build-system)
-    (home-page "http://jikes.sourceforge.net/")
+    (home-page "https://jikes.sourceforge.net/")
     (synopsis "Compiler for the Java language")
     (description "Jikes is a compiler that translates Java source files as
 defined in The Java Language Specification into the bytecoded instruction set
@@ -181,7 +181,7 @@ language.")
            ("automake" ,automake)
            ("libtool" ,libtool))
          '()))
-    (home-page "http://jamvm.sourceforge.net/")
+    (home-page "https://jamvm.sourceforge.net/")
     (synopsis "Small Java Virtual Machine")
     (description "JamVM is a Java Virtual Machine conforming to the JVM
 specification edition 2 (blue book).  It is extremely small.  However, unlike
diff --git a/gnu/packages/java-xml.scm b/gnu/packages/java-xml.scm
index 5b16806e27..3cf9f91803 100644
--- a/gnu/packages/java-xml.scm
+++ b/gnu/packages/java-xml.scm
@@ -63,7 +63,7 @@
               "test/src/org/simpleframework/xml/core/NoAnnotationsRequiredTest.java"))))))
     (native-inputs
      (list unzip))
-    (home-page "http://simple.sourceforge.net/")
+    (home-page "https://simple.sourceforge.net/")
     (synopsis "XML serialization framework for Java")
     (description "Simple is a high performance XML serialization and
 configuration framework for Java.  Its goal is to provide an XML framework
@@ -92,7 +92,7 @@ maintaining each reference encountered.")
        #:jdk ,icedtea-8
        #:source-dir ".."
        #:tests? #f)); no tests
-    (home-page "http://xerces.apache.org/xml-commons/")
+    (home-page "https://xerces.apache.org/xml-commons/")
     (synopsis "Java XML parser and transformer APIs (DOM, SAX, JAXP, TrAX)")
     (description "Jaxp from the Apache XML Commons project is used by
 the Xerces-J XML parser and Xalan-J XSLT processor and specifies these APIs:
@@ -131,7 +131,7 @@ the Xerces-J XML parser and Xalan-J XSLT processor and specifies these APIs:
        #:tests? #f)); no tests
     (inputs
      (list java-junit))
-    (home-page "http://xerces.apache.org/xml-commons/")
+    (home-page "https://xerces.apache.org/xml-commons/")
     (synopsis "Catalog-based entity and URI resolution")
     (description "The resolver class implements the full semantics of OASIS Technical
 Resolution 9401:1997 (Amendment 2 to TR 9401) catalogs and the 06 Aug
diff --git a/gnu/packages/java.scm b/gnu/packages/java.scm
index e55684d2a3..388e9d127f 100644
--- a/gnu/packages/java.scm
+++ b/gnu/packages/java.scm
@@ -660,7 +660,7 @@
              nss
              pcsc-lite
              zlib))
-      (home-page "http://icedtea.classpath.org")
+      (home-page "https://icedtea.classpath.org")
       (synopsis "Java development kit")
       (description
        "This package provides the Java development kit OpenJDK built with the
@@ -2401,7 +2401,7 @@ debugging, etc.")
              (sha256
               (base32
                "0b6335gkm4x895rac6kfg9d3rpq0sy19ph4zpg2gyw6asfsisjhk"))))))
-      (home-page "http://svnsis.ethz.ch")
+      (home-page "https://svnsis.ethz.ch")
       (synopsis "Utility classes for libraries from ETH Zurich")
       (description "This library supplies some utility classes needed for
 libraries from the SIS division at ETH Zurich like jHDF5.")
@@ -2511,7 +2511,7 @@ libraries from the SIS division at ETH Zurich like jHDF5.")
              ;; Delete bundled pre-built jars.
              (snippet
               '(begin (delete-file-recursively "lib/") #t))))))
-      (home-page "http://svnsis.ethz.ch")
+      (home-page "https://svnsis.ethz.ch")
       (synopsis "Command line parser library")
       (description "This package provides a parser for command line arguments.")
       (license license:asl2.0))))
@@ -3119,7 +3119,7 @@ private Method[] allMethods = getSortedMethods();")))
        ("java-jarjar" ,java-jarjar)))
     (propagated-inputs
      (list java-hamcrest-parent-pom))
-    (home-page "http://hamcrest.org/")
+    (home-page "https://hamcrest.org/")
     (synopsis "Library of matchers for building test expressions")
     (description
      "This package provides a library of matcher objects (also known as
@@ -5852,7 +5852,7 @@ namespaces.")
            (generate-pom.xml "pom.xml" "com.google.code.findbugs" "jsr305" ,version))
          (replace 'install
            (install-from-pom "pom.xml")))))
-    (home-page "http://findbugs.sourceforge.net/")
+    (home-page "https://findbugs.sourceforge.net/")
     (synopsis "Annotations for the static analyzer called findbugs")
     (description "This package provides annotations for the findbugs package.
 It provides packages in the @code{javax.annotations} namespace.")
@@ -6391,7 +6391,7 @@ the OSGi @code{org.osgi.service.event} module.")
        #:jar-name "eclipse-equinox-osgi.jar"))
     (inputs
      (list java-osgi-annotation))
-    (home-page "http://www.eclipse.org/equinox/")
+    (home-page "https://www.eclipse.org/equinox/")
     (synopsis "Eclipse Equinox OSGi framework")
     (description "This package provides an implementation of the OSGi Core
 specification.")
@@ -6416,7 +6416,7 @@ specification.")
        #:jar-name "eclipse-equinox-common.jar"))
     (inputs
      (list java-eclipse-osgi))
-    (home-page "http://www.eclipse.org/equinox/")
+    (home-page "https://www.eclipse.org/equinox/")
     (synopsis "Common Eclipse runtime")
     (description "This package provides the common Eclipse runtime.")
     (license license:epl1.0)))
@@ -6440,7 +6440,7 @@ specification.")
        #:jar-name "eclipse-core-jobs.jar"))
     (inputs
      (list java-eclipse-equinox-common java-eclipse-osgi))
-    (home-page "http://www.eclipse.org/equinox/")
+    (home-page "https://www.eclipse.org/equinox/")
     (synopsis "Eclipse jobs mechanism")
     (description "This package provides the Eclipse jobs mechanism.")
     (license license:epl1.0)))
@@ -6465,7 +6465,7 @@ specification.")
     (inputs
      (list java-eclipse-core-jobs java-eclipse-equinox-common
            java-eclipse-osgi))
-    (home-page "http://www.eclipse.org/equinox/")
+    (home-page "https://www.eclipse.org/equinox/")
     (synopsis "Eclipse extension registry support")
     (description "This package provides support for the Eclipse extension
 registry.")
@@ -6491,7 +6491,7 @@ registry.")
     (inputs
      (list java-eclipse-equinox-common java-eclipse-equinox-registry
            java-eclipse-osgi java-osgi-service-event))
-    (home-page "http://www.eclipse.org/equinox/")
+    (home-page "https://www.eclipse.org/equinox/")
     (synopsis "Equinox application container")
     (description "This package provides the Equinox application container for
 Eclipse.")
@@ -6517,7 +6517,7 @@ Eclipse.")
     (inputs
      (list java-eclipse-equinox-common java-eclipse-equinox-registry
            java-eclipse-osgi))
-    (home-page "http://www.eclipse.org/equinox/")
+    (home-page "https://www.eclipse.org/equinox/")
     (synopsis "Eclipse preferences mechanism")
     (description "This package provides the Eclipse preferences mechanism with
 the module @code{org.eclipse.equinox.preferences}.")
@@ -6543,7 +6543,7 @@ the module @code{org.eclipse.equinox.preferences}.")
     (inputs
      (list java-eclipse-equinox-common java-eclipse-equinox-preferences
            java-eclipse-equinox-registry java-eclipse-osgi))
-    (home-page "http://www.eclipse.org/")
+    (home-page "https://www.eclipse.org/")
     (synopsis "Eclipse content mechanism")
     (description "This package provides the Eclipse content mechanism in the
 @code{org.eclipse.core.contenttype} module.")
@@ -6858,7 +6858,7 @@ module @code{org.eclipse.compare.core}.")
     (inputs
      (list java-eclipse-equinox-common java-eclipse-core-commands
            java-icu4j))
-    (home-page "http://www.eclipse.org/platform")
+    (home-page "https://www.eclipse.org/platform")
     (synopsis "Eclipse text library")
     (description "Platform Text is part of the Platform UI project and
 provides the basic building blocks for text and text editors within Eclipse
@@ -8022,7 +8022,7 @@ import org.antlr.grammar.v2.ANTLRTreePrinter;"))
      (list java-junit))
     (native-inputs
      (list java-hamcrest-core))
-    (home-page "http://treelayout.sourceforge.net")
+    (home-page "https://treelayout.sourceforge.net")
     (synopsis "Tree Layout Algorithm in Java")
     (description "TreeLayout creates tree layouts for arbitrary trees.  It is
 not restricted to a specific output or format, but can be used for any kind of
@@ -9972,7 +9972,7 @@ this is not a static analysis tool.)")
            (generate-pom.xml "pom.xml" "aopalliance" "aopalliance" ,version))
          (replace 'install
            (install-from-pom "pom.xml")))))
-    (home-page "http://aopalliance.sourceforge.net")
+    (home-page "https://aopalliance.sourceforge.net")
     (synopsis "Aspect-Oriented Programming")
     (description "The AOP Alliance project is a joint project between several
 software engineering people who are interested in Aspect-Oriented Programming
@@ -11114,7 +11114,7 @@ protocol-independent framework to build mail and messaging applications.")
     (native-inputs
      `(("java-hamcrest-core" ,java-hamcrest-core)
        ("junit" ,java-junit)))
-    (home-page "http://zeromq.org/bindings:java")
+    (home-page "https://zeromq.org/bindings:java")
     (synopsis "Java binding for 0MQ")
     (description "Jeromq provides the java bindings for 0MQ.")
     (license license:mpl2.0)))
@@ -11763,7 +11763,7 @@ specific events.")
            java-jboss-interceptors-api-spec java-weld-parent-pom))
     (native-inputs
      (list java-testng java-hamcrest-core))
-    (home-page "http://cdi-spec.org/")
+    (home-page "https://cdi-spec.org/")
     (synopsis "Contexts and Dependency Injection APIs")
     (description "Java-cdi-api contains the required APIs for Contexts and
 Dependency Injection (CDI).")
@@ -13594,7 +13594,7 @@ can be interpreted by IDEs and static analysis tools to improve code analysis.")
      (list java-guava java-jboss-javassist java-jsonp-api))
     (native-inputs
      (list javacc))
-    (home-page "http://javaparser.org/")
+    (home-page "https://javaparser.org/")
     (synopsis "Parser for Java")
     (description
      "This project contains a set of libraries implementing a Java 1.0 - Java
diff --git a/gnu/packages/jemalloc.scm b/gnu/packages/jemalloc.scm
index 2e25780257..1abf8a69a6 100644
--- a/gnu/packages/jemalloc.scm
+++ b/gnu/packages/jemalloc.scm
@@ -65,7 +65,7 @@
     ;; Install the scripts to a separate output to avoid referencing Perl and
     ;; Bash in the default output, saving ~75 MiB on the closure.
     (outputs '("out" "bin"))
-    (home-page "http://jemalloc.net/")
+    (home-page "https://jemalloc.net/")
     (synopsis "General-purpose scalable concurrent malloc implementation")
     (description
      "This library providing a malloc(3) implementation that emphasizes
diff --git a/gnu/packages/julia-xyz.scm b/gnu/packages/julia-xyz.scm
index 82429c957d..f6de56e858 100644
--- a/gnu/packages/julia-xyz.scm
+++ b/gnu/packages/julia-xyz.scm
@@ -4888,7 +4888,7 @@ more complex visualizations.")
      (list julia-nanmath
            julia-plotutils
            julia-recipesbase))
-    (home-page "http://juliaplots.org/RecipesPipeline.jl/dev/")
+    (home-page "https://juliaplots.org/RecipesPipeline.jl/dev/")
     (synopsis "Utilities for processing recipes")
     (description "This package was factored out of @code{Plots.jl} to allow any
 other plotting package to use the recipe pipeline.  In short, the extremely
diff --git a/gnu/packages/kde-internet.scm b/gnu/packages/kde-internet.scm
index cf074452e7..43af023831 100644
--- a/gnu/packages/kde-internet.scm
+++ b/gnu/packages/kde-internet.scm
@@ -169,7 +169,7 @@ Other notable features include:
              (when tests? ;; FIXME: two tests fails.
                (invoke "ctest" "-E" "(schedulertest|filedeletertest)"))
              #t)))))
-    (home-page "http://www.kde.org/")
+    (home-page "https://www.kde.org/")
     (synopsis "Versatile and user-friendly download manager")
     (description "KGet is an advanced download manager with support for
 Metalink and Bittorrent.  Downloads are added to the list, where they can be
diff --git a/gnu/packages/kde-systemtools.scm b/gnu/packages/kde-systemtools.scm
index 455798ab8c..498dcbf0ed 100644
--- a/gnu/packages/kde-systemtools.scm
+++ b/gnu/packages/kde-systemtools.scm
@@ -119,7 +119,7 @@ The main features of Dolphin are:
            kxmlgui
            breeze-icons ;; default icon set
            qtbase-5))
-    (home-page "http://www.kde.org/")
+    (home-page "https://www.kde.org/")
     (synopsis "VCS-Plugins for Dolphin")
     (description "This package contains plugins that offer integration in
 Dolphin with the version control systems: Bzr, Git, Mercurial, Subversion.")
@@ -227,7 +227,7 @@ document meta data file.")
            qtscript))
     (arguments
      `(#:tests? #f)) ;; TODO: 2/15 tests fail even with HOME, offscreen, SHELL, debus
-    (home-page "http://www.kde.org/")
+    (home-page "https://www.kde.org/")
     (synopsis "Terminal emulator similar for KDE")
     (description "Konsole is a terminal emulator, similar to xterm, built on
 the KDE Platform.  It can contain multiple terminal sessions inside one window
diff --git a/gnu/packages/kodi.scm b/gnu/packages/kodi.scm
index ed80d0662f..739d293a57 100644
--- a/gnu/packages/kodi.scm
+++ b/gnu/packages/kodi.scm
@@ -257,7 +257,7 @@ generator library for C++.")
          (base32
           "0xilghiy3mz78bjmfldi39qyy7jvw5b6wafsx370lw401y2qw0g4"))))
     (build-system gnu-build-system)
-    (home-page "http://fstrcmp.sourceforge.net/")
+    (home-page "https://fstrcmp.sourceforge.net/")
     (arguments
      '(#:configure-flags '("SH=sh")))
     (native-inputs
diff --git a/gnu/packages/language.scm b/gnu/packages/language.scm
index 994bc09e67..f7e3ea6cd6 100644
--- a/gnu/packages/language.scm
+++ b/gnu/packages/language.scm
@@ -264,7 +264,7 @@ focuses especially on Korean input (Hangul, Hanja, ...).")
 is lightweight, stable, powerful and supports many commonly used input methods,
 including Cangjie, Zhuyin, Dayi, Ranked, Shrimp, Greek, Anthy, Korean, Latin,
 Random Cage Fighting Birds, Cool Music etc.")
-    (home-page "http://hime-ime.github.io/")
+    (home-page "https://hime-ime.github.io/")
     (license (list license:gpl2+ license:lgpl2.1+
                    license:fdl1.2+)))) ; documentation
 
@@ -325,7 +325,7 @@ Random Cage Fighting Birds, Cool Music etc.")
     (synopsis "Chinese phonetic input method")
     (description "Chewing is an intelligent phonetic (Zhuyin/Bopomofo) input
 method, one of the most popular choices for Traditional Chinese users.")
-    (home-page "http://chewing.im/")
+    (home-page "https://chewing.im/")
     (license license:lgpl2.1+)))
 
 (define-public liblouis
diff --git a/gnu/packages/lego.scm b/gnu/packages/lego.scm
index 39823dfee8..966716f5ad 100644
--- a/gnu/packages/lego.scm
+++ b/gnu/packages/lego.scm
@@ -89,7 +89,7 @@
                                  (assoc-ref inputs patch)))
                        (list "add-usb-tcp-support.patch"
                              "debian-writable-swap-inst-len.patch")))))))
-    (home-page "http://bricxcc.sourceforge.net/nqc/")
+    (home-page "https://bricxcc.sourceforge.net/nqc/")
     (synopsis "C-like language for Lego's MINDSTORMS")
     (description
      "Not Quite C (NQC) is a simple language for programming several Lego
diff --git a/gnu/packages/lesstif.scm b/gnu/packages/lesstif.scm
index 5d902ba92f..bcda6b9867 100644
--- a/gnu/packages/lesstif.scm
+++ b/gnu/packages/lesstif.scm
@@ -49,7 +49,7 @@
      (list printproto))
     (inputs
       (list libxext libxt))
-    (home-page "http://lesstif.sourceforge.net/")
+    (home-page "https://lesstif.sourceforge.net/")
     (synopsis "Clone of the Motif toolkit for the X window system")
     (description "Clone of the Motif toolkit for the X window system.")
     (license license:gpl2+))) ; some files are lgpl2.1+ or x11
diff --git a/gnu/packages/libcanberra.scm b/gnu/packages/libcanberra.scm
index 337aa6840a..86e77b0f22 100644
--- a/gnu/packages/libcanberra.scm
+++ b/gnu/packages/libcanberra.scm
@@ -94,7 +94,7 @@
                  (assoc-ref inputs "sound-theme-freedesktop")
                  "/share")))
              #t)))))
-    (home-page "http://0pointer.de/lennart/projects/libcanberra/")
+    (home-page "https://0pointer.de/lennart/projects/libcanberra/")
     (synopsis
      "Implementation of the XDG Sound Theme and Name Specifications")
     (description
diff --git a/gnu/packages/libdaemon.scm b/gnu/packages/libdaemon.scm
index 12e4e2dc9c..c42dfb6380 100644
--- a/gnu/packages/libdaemon.scm
+++ b/gnu/packages/libdaemon.scm
@@ -80,7 +80,7 @@
                      (symlink (which "config.sub") "config.sub")))))
              '())))
     ;; XXX: Stale URL, missing replacement.  See <http://bugs.gnu.org/18639>.
-    (home-page "http://0pointer.de/lennart/projects/libdaemon/")
+    (home-page "https://0pointer.de/lennart/projects/libdaemon/")
 
     (synopsis "Lightweight C library that eases the writing of UNIX daemons")
     (description
diff --git a/gnu/packages/libffi.scm b/gnu/packages/libffi.scm
index 6d16e6a03b..60e8bb23ea 100644
--- a/gnu/packages/libffi.scm
+++ b/gnu/packages/libffi.scm
@@ -73,7 +73,7 @@ to call code written in another language.  The libffi library really only
 provides the lowest, machine dependent layer of a fully featured foreign
 function interface.  A layer must exist above libffi that handles type
 conversions for values passed between the two languages.")
-    (home-page "http://www.sourceware.org/libffi/")
+    (home-page "https://www.sourceware.org/libffi/")
     (properties `((release-monitoring-url . ,home-page)))
 
     ;; See <https://github.com/atgreen/libffi/blob/master/LICENSE>.
diff --git a/gnu/packages/libreoffice.scm b/gnu/packages/libreoffice.scm
index 9706e0ab69..240b4279fa 100644
--- a/gnu/packages/libreoffice.scm
+++ b/gnu/packages/libreoffice.scm
@@ -253,7 +253,7 @@ spreadsheets and presentations.")
      (list librevenge)) ; in Requires field of .pkg
     (inputs
      (list zlib))
-    (home-page "http://libwpd.sourceforge.net/")
+    (home-page "https://libwpd.sourceforge.net/")
     (synopsis "Library for importing WordPerfect documents")
     (description "Libwpd is a C++ library designed to help process
 WordPerfect documents.  It is most commonly used to import such documents
@@ -344,7 +344,7 @@ way--presentation and vector drawing interfaces.")
      (list libwpd)) ; in Requires field of .pkg
     (inputs
      (list perl zlib))
-    (home-page "http://libwpg.sourceforge.net/")
+    (home-page "https://libwpg.sourceforge.net/")
     (synopsis "Library and tools for the WordPerfect Graphics format")
     (description "The libwpg project provides a library and tools for
 working with graphics in the WPG (WordPerfect Graphics) format.")
@@ -760,7 +760,7 @@ from the old StarOffice (.sdc, .sdw, ...).")
      (list librevenge))
     (inputs
      (list boost zlib))
-    (home-page "http://libwps.sourceforge.net/")
+    (home-page "https://libwps.sourceforge.net/")
     (synopsis "Import library for Microsoft Works text documents")
     (description "Libwps is a library for importing files in the Microsoft
 Works word processor file format.")
diff --git a/gnu/packages/libusb.scm b/gnu/packages/libusb.scm
index 468f7b1753..c009c78e88 100644
--- a/gnu/packages/libusb.scm
+++ b/gnu/packages/libusb.scm
@@ -578,7 +578,7 @@ over USB.")
      (list #:configure-flags
            #~(list "--disable-static"
                    (string-append "--with-udev=" #$output "/lib/udev"))))
-    (home-page "http://libmtp.sourceforge.net/")
+    (home-page "https://libmtp.sourceforge.net/")
     (synopsis "Library implementing the Media Transfer Protocol")
     (description "Libmtp implements an MTP (Media Transfer Protocol)
 initiator, which means that it initiates MTP sessions with devices.  The
@@ -615,7 +615,7 @@ proposed for standardization.")
      (list gtk+ flac libvorbis libid3tag libmtp))
     (native-inputs
      (list pkg-config))
-    (home-page "http://gmtp.sourceforge.net/")
+    (home-page "https://gmtp.sourceforge.net/")
     (synopsis "Simple graphical MTP client")
     (description "gMTP is a simple graphical client for the Media Transfer Protocol
   (MTP), which allows media files to be transferred to and from many portable
diff --git a/gnu/packages/linux.scm b/gnu/packages/linux.scm
index 61eaec2876..691e0d2edc 100644
--- a/gnu/packages/linux.scm
+++ b/gnu/packages/linux.scm
@@ -2437,7 +2437,7 @@ module.")
                    (for-each (lambda (file)
                                (chmod file #o666))
                              archives))))))))
-    (home-page "http://e2fsprogs.sourceforge.net/")
+    (home-page "https://e2fsprogs.sourceforge.net/")
     (synopsis "Creating and checking ext2/ext3/ext4 file systems")
     (description
      "This package provides tools for manipulating ext2/ext3/ext4 file systems.")
@@ -2502,7 +2502,7 @@ from the e2fsprogs package.  It is meant to be used in initrds.")
        (patches (search-patches "extundelete-e2fsprogs-1.44.patch"))))
     (build-system gnu-build-system)
     (inputs (list e2fsprogs))
-    (home-page "http://extundelete.sourceforge.net/")
+    (home-page "https://extundelete.sourceforge.net/")
     (synopsis "Recover deleted files from ext2/3/4 partitions")
     (description
      "Extundelete is a set of tools that can recover deleted files from an
@@ -2981,7 +2981,7 @@ early boot when entropy may be low, especially in virtualised environments.")
                "0jp458m2b3wckr18qkln69i01152qlwz33zm49103lq8fgx0n6d4"))))
     (build-system gnu-build-system)
     (synopsis "Lists information about SCSI or NVMe devices in Linux")
-    (home-page "http://sg.danny.cz/scsi/lsscsi.html")
+    (home-page "https://sg.danny.cz/scsi/lsscsi.html")
     (description
      "@command{lsscsi} lists SCSI logical units or SCSI targets.  It can
 also list NVMe namespaces or controllers and show the relationship between a
@@ -3100,7 +3100,7 @@ inadequately in modern network environments, and both should be deprecated.")
                (sha256
                 (base32
                  "0hz9fda9d78spp774b6rr5xaxav7cm4h0qcpxf70rvdbrf6qx7vy"))))
-      (home-page "http://net-tools.sourceforge.net/")
+      (home-page "https://net-tools.sourceforge.net/")
       (build-system gnu-build-system)
       (arguments
        `(#:modules ((guix build gnu-build-system)
@@ -3895,7 +3895,7 @@ NUMA performance on your system.")
             ;; run (for example) ‘loadkeys en-latin9’ instead of having to find
             ;; and type ‘i386/colemak/en-latin9’ on a mislabelled keyboard.
             (files (list "share/keymaps/**")))))
-    (home-page "http://kbd-project.org/")
+    (home-page "https://kbd-project.org/")
     (synopsis "Linux keyboard utilities and keyboard maps")
     (description
      "This package contains keytable files and keyboard utilities compatible
@@ -5157,7 +5157,7 @@ specified in /etc/acpi/events and execute the rules that match the event.")
        (sha256
         (base32 "12i0ip11xbfcjzxz4r10cvz7mbzgq1hfcdn97w6zz7sm3wndwrg8"))))
     (build-system gnu-build-system)
-    (home-page "http://linux-diag.sourceforge.net/Sysfsutils.html")
+    (home-page "https://linux-diag.sourceforge.net/Sysfsutils.html")
     (synopsis "System utilities based on Linux sysfs")
     (description
      "These are a set of utilities built upon sysfs, a virtual file system in
@@ -8210,7 +8210,7 @@ available in the kernel Linux.")
                       (assoc-ref outputs "out"))))))))
     (inputs (list perl))
     (supported-systems '("i686-linux" "x86_64-linux"))
-    (home-page "http://www.etallen.com/cpuid.html")
+    (home-page "https://www.etallen.com/cpuid.html")
     (synopsis "Dump x86 CPUID processor information")
     (description "cpuid dumps detailed information about the CPU(s) gathered
 from the CPUID instruction, and also determines the exact model of CPU(s).  It
@@ -8652,7 +8652,7 @@ the OS-specific data structures needed by the kernel to setup the event.
 
 libpfm4 provides support for the @code{perf_events} interface, which was
 introduced in Linux 2.6.31.")
-    (home-page "http://perfmon2.sourceforge.net/")
+    (home-page "https://perfmon2.sourceforge.net/")
     (license license:expat)))
 
 (define-public libnfnetlink
diff --git a/gnu/packages/lisp-check.scm b/gnu/packages/lisp-check.scm
index 038ca1f18b..fb65a27e62 100644
--- a/gnu/packages/lisp-check.scm
+++ b/gnu/packages/lisp-check.scm
@@ -815,7 +815,7 @@ advantages of @command{prove} are:
              (delete-file-recursively "debian")
              #t))))
       (build-system asdf-build-system/sbcl)
-      (home-page "http://quickdocs.org/ptester/")
+      (home-page "https://quickdocs.org/ptester/")
       (synopsis "Portable test harness package")
       (description
        "@command{ptester} is a portable testing framework based on Franz's
@@ -1098,7 +1098,7 @@ parameterization.")
       (description
        "The XLUnit package is a toolkit for building test suites.  It is based
 on the XPTest package by Craig Brozensky and the JUnit package by Kent Beck.")
-      (home-page "http://quickdocs.org/xlunit/")
+      (home-page "https://quickdocs.org/xlunit/")
       (license license:bsd-3))))
 
 (define-public cl-xlunit
diff --git a/gnu/packages/lisp-xyz.scm b/gnu/packages/lisp-xyz.scm
index dbe87bba1b..a874b74a6a 100644
--- a/gnu/packages/lisp-xyz.scm
+++ b/gnu/packages/lisp-xyz.scm
@@ -2883,7 +2883,7 @@ satisfying the test.")
     (synopsis "Common Lisp library for encoding text in various web-savvy encodings")
     (description
      "A library for encoding text in various web-savvy encodings.")
-    (home-page "http://quickdocs.org/html-encode/")
+    (home-page "https://quickdocs.org/html-encode/")
     (license license:expat)))
 
 (define-public cl-html-encode
@@ -3174,7 +3174,7 @@ readtables, which is akin to package namespacing in Common Lisp.")
     (build-system asdf-build-system/sbcl)
     (inputs
      (list sbcl-parse-number))
-    (home-page "http://common-lisp.net/project/py-configparser/")
+    (home-page "https://common-lisp.net/project/py-configparser/")
     (synopsis "ConfigParser Python module functionality for Common Lisp")
     (description "The py-configparser package implements the ConfigParser
 Python module functionality in Common Lisp.  In short, it implements reading
@@ -5616,7 +5616,7 @@ PROPER-LIST, ASSOCIATION-LIST, PROPERTY-LIST and TUPLE.")
                (substitute* "rotate-byte.lisp"
                  (("in-package :cl-utilities)" all)
                   "in-package :cl-utilities)\n\n#+sbcl\n(require :sb-rotate-byte)")))))))
-      (home-page "http://common-lisp.net/project/cl-utilities")
+      (home-page "https://common-lisp.net/project/cl-utilities")
       (synopsis "Collection of semi-standard utilities")
       (description
        "On Cliki.net <http://www.cliki.net/Common%20Lisp%20Utilities>, there
@@ -8234,7 +8234,7 @@ situations, operations on series may be composed functionally and yet execute
 iteratively, without the need to construct intermediate series values
 explicitly.  In this manner, series provide both the clarity of a functional
 programming style and the efficiency of an iterative programming style.")
-      (home-page "http://series.sourceforge.net/")
+      (home-page "https://series.sourceforge.net/")
       (license license:expat))))
 
 (define-public cl-series
@@ -12085,7 +12085,7 @@ interface for MySQL, PostgreSQL and SQLite.")
     (description
      "UFFI provides a universal foreign function interface (FFI)
  for Common Lisp.")
-    (home-page "http://quickdocs.org/uffi/")
+    (home-page "https://quickdocs.org/uffi/")
     (license license:llgpl)))
 
 (define-public cl-uffi
@@ -12220,7 +12220,7 @@ interface for MySQL, PostgreSQL and SQLite.")
      "@code{clsql} is a Common Lisp interface to SQL RDBMS based on the
 Xanalys CommonSQL interface for Lispworks.  It provides low-level database
 interfaces as well as a functional and an object oriented interface.")
-    (home-page "http://clsql.kpe.io/")
+    (home-page "https://clsql.kpe.io/")
     (license license:llgpl)))
 
 (define-public cl-clsql
@@ -12286,7 +12286,7 @@ If features:
 @item Purely functional pairing heaps.
 @item Purely functional amortized queue.
 @end itemize\n")
-      (home-page "http://ndantam.github.io/sycamore/")
+      (home-page "https://ndantam.github.io/sycamore/")
       (license license:bsd-3))))
 
 (define-public cl-sycamore
@@ -12593,7 +12593,7 @@ MOP easier to use.")
     (package
       (name "sbcl-osicat")
       (version (git-version "0.7.0" revision commit))
-      (home-page "http://www.common-lisp.net/project/osicat/")
+      (home-page "https://www.common-lisp.net/project/osicat/")
       (source
        (origin
          (method git-fetch)
@@ -14231,7 +14231,7 @@ package that includes a number of renames and shadows.")
            sbcl-hu.dwim.common-lisp
            sbcl-iterate
            sbcl-metabang-bind))
-    (home-page "http://dwim.hu/")
+    (home-page "https://dwim.hu/")
     (synopsis "Common Lisp library shared by other hu.dwim systems")
     (description "This package contains a support library for other
 hu.dwim systems.")
@@ -14629,7 +14629,7 @@ can begin writing unit tests as soon as the project is generated.")
     (package
       (name "sbcl-caveman")
       (version (git-version "2.4.0" revision commit))
-      (home-page "http://8arrow.org/caveman/")
+      (home-page "https://8arrow.org/caveman/")
       (source
        (origin
          (method git-fetch)
@@ -15731,7 +15731,7 @@ not so easy to copy (ssyntax, argument destructuring, etc.).")
       (build-system asdf-build-system/sbcl)
       (native-inputs
        (list sbcl-lift))
-      (home-page "http://common-lisp.net/project/trivial-shell/")
+      (home-page "https://common-lisp.net/project/trivial-shell/")
       (synopsis "Common Lisp access to the shell")
       (description
        "A simple Common-Lisp interface to the underlying operating system.
@@ -16006,7 +16006,7 @@ the @command{flamegraph.pl} script, which is available in the Guix package
       (build-system asdf-build-system/sbcl)
       (inputs
        (list sbcl-alexandria))
-      (home-page "http://shinmera.github.io/trivial-benchmark/")
+      (home-page "https://shinmera.github.io/trivial-benchmark/")
       (synopsis "Easy to use benchmarking system for Common Lisp")
       (description
        "Trivial-Benchmark runs a block of code many times and outputs some
@@ -24817,7 +24817,7 @@ operating on them.")
       (native-inputs
        (list sbcl-iterate
              sbcl-hu.dwim.stefil))
-      (home-page "http://nikodemus.github.io/screamer/")
+      (home-page "https://nikodemus.github.io/screamer/")
       (synopsis "Nondeterministic programming and constraint propagation")
       (description
        "Screamer is an extension of Common Lisp that adds support for
@@ -26873,7 +26873,7 @@ Closure Templates.")
 combinators.  Using a simple technique from the functional programming
 camp, @code{cl-smug} makes it simple to create quick extensible recursive
 descent parsers without funky syntax or impenetrable macrology.")
-     (home-page "http://smug.drewc.ca/")
+     (home-page "https://smug.drewc.ca/")
      (license license:expat))))
 
 (define-public cl-smug
diff --git a/gnu/packages/lisp.scm b/gnu/packages/lisp.scm
index 777c6edbc5..22284de7a2 100644
--- a/gnu/packages/lisp.scm
+++ b/gnu/packages/lisp.scm
@@ -654,7 +654,7 @@ an interpreter, a compiler, a debugger, and much more.")
            (search-path-specification
             (variable "XDG_CONFIG_DIRS")
             (files '("etc")))))
-    (home-page "http://www.sbcl.org/")
+    (home-page "https://www.sbcl.org/")
     (synopsis "Common Lisp implementation")
     (description "Steel Bank Common Lisp (SBCL) is a high performance Common
 Lisp compiler.  In addition to the compiler and runtime system for ANSI Common
@@ -877,7 +877,7 @@ libraries such as OpenGL, SDL, Video4Linux, and ALSA (video/audio
 grabbing), and others.  Lush is an ideal frontend script language for
 programming projects written in C or other languages.  Lush also has
 libraries for Machine Learning, Neural Nets and statistical estimation.")
-    (home-page "http://lush.sourceforge.net/")
+    (home-page "https://lush.sourceforge.net/")
     (license license:lgpl2.1+)))
 
 (define-public confusion-mdl
@@ -971,7 +971,7 @@ enough to play the original mainframe Zork all the way through.")
                (invoke "./configure" "+lang" "en" "+fhs"
                        (string-append "-prefix=" (assoc-ref outputs "out")))
                #t)))))
-      (home-page "http://www.kylheku.com/cgit/man/")
+      (home-page "https://www.kylheku.com/cgit/man/")
       (synopsis "Modifications to the man utilities, specifically man2html")
       (description
        "This is a fork of the man utilities intended specifically for building
diff --git a/gnu/packages/logging.scm b/gnu/packages/logging.scm
index 76b8f6a6b7..550caf7be1 100644
--- a/gnu/packages/logging.scm
+++ b/gnu/packages/logging.scm
@@ -88,7 +88,7 @@
      "Log4cpp is library of C++ classes for flexible logging to files, syslog,
 IDSA and other destinations.  It is modeled after the Log4j Java library,
 staying as close to their API as is reasonable.")
-    (home-page "http://log4cpp.sourceforge.net/")
+    (home-page "https://log4cpp.sourceforge.net/")
     (license license:lgpl2.1+)))
 
 (define-public glog
diff --git a/gnu/packages/lua.scm b/gnu/packages/lua.scm
index 5fd1d66927..d50890bf1e 100644
--- a/gnu/packages/lua.scm
+++ b/gnu/packages/lua.scm
@@ -655,7 +655,7 @@ standard libraries.")
            (lambda* (#:key outputs #:allow-other-keys)
              (mkdir-p (string-append (assoc-ref outputs "out") "/bin"))
              #t)))))
-    (home-page "http://stevedonovan.github.io/ldoc/")
+    (home-page "https://stevedonovan.github.io/ldoc/")
     (synopsis "Lua documentation generator")
     (description
      "LDoc is a LuaDoc-compatible documentation generation system for
@@ -779,7 +779,7 @@ Notable examples are GTK+, GStreamer and Webkit.")
     (description
      "LPeg is a pattern-matching library for Lua, based on Parsing Expression
 Grammars (PEGs).")
-    (home-page "http://www.inf.puc-rio.br/~roberto/lpeg")
+    (home-page "https://www.inf.puc-rio.br/~roberto/lpeg")
     (license license:expat)))
 
 (define-public lua-lpeg
diff --git a/gnu/packages/machine-learning.scm b/gnu/packages/machine-learning.scm
index 449335174f..8bd1d8b8bb 100644
--- a/gnu/packages/machine-learning.scm
+++ b/gnu/packages/machine-learning.scm
@@ -437,7 +437,7 @@ Performance is achieved by using the LLVM JIT compiler.")
                                "CFLAGS=-fcommon")))
     (inputs
      (list perl))
-    (home-page "http://micans.org/mcl/")
+    (home-page "https://micans.org/mcl/")
     (synopsis "Clustering algorithm for graphs")
     (description
      "The MCL algorithm is short for the @dfn{Markov Cluster Algorithm}, a
@@ -564,7 +564,7 @@ sample proximities between pairs of cases.")
                 "0hlbdmjjf1jgsvi3d2hwni5lz3l9a5bzj6ijpbawa8a7cbrpp66y"))))
     (build-system gnu-build-system)
     (arguments '(#:configure-flags '("--enable-ngram-fsts")))
-    (home-page "http://www.openfst.org")
+    (home-page "https://www.openfst.org")
     (synopsis "Library for weighted finite-state transducers")
     (description "OpenFst is a library for constructing, combining,
 optimizing, and searching weighted finite-state transducers (FSTs).")
@@ -905,7 +905,7 @@ with a single function call.")
              (invoke "ctest"))))))
     (native-inputs
      (list catch-framework))
-    (home-page "http://reactivex.io/")
+    (home-page "https://reactivex.io/")
     (synopsis "Reactive Extensions for C++")
     (description
      "The Reactive Extensions for C++ (RxCpp) is a library of algorithms for
diff --git a/gnu/packages/mail.scm b/gnu/packages/mail.scm
index 4c36e05fe0..6ef4c6fdab 100644
--- a/gnu/packages/mail.scm
+++ b/gnu/packages/mail.scm
@@ -1602,7 +1602,7 @@ system, written in the Mercury language.")
      (list pandoc pkg-config))
     (inputs
      (list openssl notmuch sqlite xapian))
-    (home-page "http://www.muchsync.org/")
+    (home-page "https://www.muchsync.org/")
     (synopsis "Synchronize notmuch mail across machines")
     (description
      "Muchsync brings Notmuch to all of your computers by synchronizing your
@@ -2555,7 +2555,7 @@ separation to safely deliver mail in multi-user setups.")
     ;; are performed before the actual build process.
     (build-system gnu-build-system)
     (inputs (list exim))
-    (home-page "http://www.procmail.org/")
+    (home-page "https://www.procmail.org/")
     (synopsis "Versatile mail delivery agent (MDA)")
     (description "Procmail is a mail delivery agent (MDA) featuring support
 for a variety of mailbox formats such as mbox, mh and maildir.  Incoming mail
@@ -3041,7 +3041,7 @@ define(`confINST_DEP', `')
        #:tests? #f))
     (inputs
      (list m4 perl))
-    (home-page "http://sendmail.org")
+    (home-page "https://sendmail.org")
     (synopsis
      "Highly configurable Mail Transfer Agent (MTA)")
     (description
@@ -3331,7 +3331,7 @@ writing OpenSMTPd filters.")
            ;; Our OpenSMTPd package uses libressl, but this package currently
            ;; supports HAVE_ED25519 only with openssl.
            openssl))
-    (home-page "http://imperialat.at/dev/filter-dkimsign/")
+    (home-page "https://imperialat.at/dev/filter-dkimsign/")
     (synopsis "OpenSMTPd filter for signing mail with DKIM")
     (description
      "The @command{filter-dkimsign} OpenSMTPd filter signs outgoing e-mail
@@ -4676,7 +4676,7 @@ ex-like commands on it.")
      (list tre))
     (native-inputs
      `(("emacs" ,emacs-minimal)))
-    (home-page "http://crm114.sourceforge.net/")
+    (home-page "https://crm114.sourceforge.net/")
     (synopsis "Controllable regex mutilator")
     (description "CRM114 is a system to examine incoming e-mail, system log
 streams, data files or other data streams, and to sort, filter, or alter the
diff --git a/gnu/packages/man.scm b/gnu/packages/man.scm
index 8565031571..febcb5a4a8 100644
--- a/gnu/packages/man.scm
+++ b/gnu/packages/man.scm
@@ -117,7 +117,7 @@ textfiles to roff for terminal display, and also to HTML for the web.")
                (base32
                 "1c5dl017xil2ssb6a5vg927bnsbc9vymfgi9ahvqbb8gypx0igsx"))))
     (build-system gnu-build-system)
-    (home-page "http://libpipeline.nongnu.org/")
+    (home-page "https://libpipeline.nongnu.org/")
     (synopsis "C library for manipulating pipelines of subprocesses")
     (description
      "libpipeline is a C library for manipulating pipelines of subprocesses in
@@ -211,7 +211,7 @@ a flexible and convenient way.")
      (list (search-path-specification
             (variable "MANPATH")
             (files '("share/man")))))
-    (home-page "http://man-db.nongnu.org/")
+    (home-page "https://man-db.nongnu.org/")
     (synopsis "Standard Unix documentation system")
     (description
      "Man-db is an implementation of the standard Unix documentation system
diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index d32a6354ab..280465e284 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -930,7 +930,7 @@ large scale eigenvalue problems.")
        (base32
         "1155qixp26c12yrxc76z9mlfw2h3xxymxxv5znpgzh5gaykpndgj"))))
     (build-system cmake-build-system)
-    (home-page "http://www.netlib.org/lapack/")
+    (home-page "https://www.netlib.org/lapack/")
     (inputs `(("fortran" ,gfortran)
               ("python" ,python-wrapper)))
     (arguments
@@ -1033,7 +1033,7 @@ provide LAPACK for someone who does not have access to a Fortran compiler.")
                       (substitute* "TESTING/CMakeLists.txt"
                         (("^add_test\\(x[sd]hseqr.*" all)
                          (string-append "# " all "\n"))))))))
-    (home-page "http://www.netlib.org/scalapack/")
+    (home-page "https://www.netlib.org/scalapack/")
     (synopsis "Library for scalable numerical linear algebra")
     (description
      "ScaLAPACK is a Fortran 90 library of high-performance linear algebra
@@ -1655,7 +1655,7 @@ System (Grid, Point and Swath).")
      "HDF-EOS5 is a software library built on HDF5 to support the construction
 of data structures used in NASA's Earth Observing System (Grid, Point and
 Swath).")
-    (home-page "http://www.hdfeos.org/software/library.php#HDF-EOS5")
+    (home-page "https://www.hdfeos.org/software/library.php#HDF-EOS5")
 
     ;; Source files carry a permissive license header.
     (license (license:non-copyleft home-page))))
@@ -1840,7 +1840,7 @@ the resulting text.")
      `(("texlive" ,texlive-tiny)
        ("ghostscript" ,ghostscript)
        ("doxygen" ,doxygen)))
-    (home-page "http://itpp.sourceforge.net")
+    (home-page "https://itpp.sourceforge.net")
     (synopsis "C++ library of maths, signal processing and communication classes")
     (description "IT++ is a C++ library of mathematical, signal processing and
 communication classes and functions.  Its main use is in simulation of
@@ -3177,7 +3177,7 @@ This is the certified version of the Open Cascade Technology (OCCT) library.")
                (substitute* "api/gmsh.py"
                  (("find_library\\(\"gmsh\"\\)")
                   (simple-format #f "\"~a\"" libgmsh)))))))))
-    (home-page "http://gmsh.info/")
+    (home-page "https://gmsh.info/")
     (synopsis "3D finite element grid generator")
     (description "Gmsh is a 3D finite element grid generator with a built-in
 CAD engine and post-processor.  Its design goal is to provide a fast, light
@@ -3701,7 +3701,7 @@ bindings to almost all functions of SLEPc.")
     (build-system gnu-build-system)
     (native-inputs
      (list autoconf automake))
-    (home-page "http://us.metamath.org/")
+    (home-page "https://us.metamath.org/")
     (synopsis "Proof verifier based on a minimalistic formalism")
     (description
      "Metamath is a tiny formal language and that can express theorems in
@@ -4380,7 +4380,7 @@ schemes.")
        #:phases (modify-phases %standard-phases
                   (add-before 'check 'mpi-setup
 		    ,%openmpi-setup))))
-    (home-page "http://www.p4est.org")
+    (home-page "https://www.p4est.org")
     (synopsis "Adaptive mesh refinement on forests of octrees")
     (description
      "The p4est software library enables the dynamic management of a
@@ -4632,7 +4632,7 @@ full text searching.")
      `(("openblas" ,openblas)
        ("lapack" ,lapack)
        ("arpack" ,arpack-ng)))
-    (home-page "http://arma.sourceforge.net/")
+    (home-page "https://arma.sourceforge.net/")
     (synopsis "C++ linear algebra library")
     (description
      "Armadillo is a C++ linear algebra library, aiming towards a good balance
@@ -5050,7 +5050,7 @@ Fresnel integrals, and similar related functions as well.")
     (native-inputs
      `(("cmake" ,cmake-minimal)
        ("m4" ,m4)))
-    (home-page "http://faculty.cse.tamu.edu/davis/suitesparse.html")
+    (home-page "https://faculty.cse.tamu.edu/davis/suitesparse.html")
     (synopsis "Suite of sparse matrix software")
     (description
      "SuiteSparse is a suite of sparse matrix algorithms, including: UMFPACK,
@@ -5078,7 +5078,7 @@ packages.")
                (base32
                 "1dyjlq3fiparvm8ypwk6rsmjzmnwk81l88gkishphpvc79ryp216"))))
     (build-system gnu-build-system)
-    (home-page "http://math-atlas.sourceforge.net/")
+    (home-page "https://math-atlas.sourceforge.net/")
     (inputs `(("gfortran" ,gfortran)
               ("lapack-tar" ,(package-source lapack))))
     (outputs '("out" "doc"))
@@ -5334,7 +5334,7 @@ specifications.")
                              (install-file name include))
                            (find-files "." "\\.h$")))
                #t))))))
-    (home-page "http://lpsolve.sourceforge.net/")
+    (home-page "https://lpsolve.sourceforge.net/")
     (synopsis "Mixed integer linear programming (MILP) solver")
     (description
      "lp_solve is a mixed integer linear programming solver based on the
@@ -5681,7 +5681,7 @@ FLANN is written in C++ and contains bindings for C, Octave and Python.")
      (list mpfr readline))
     (native-inputs
      (list bison flex))
-    (home-page "http://w-calc.sourceforge.net/index.php")
+    (home-page "https://w-calc.sourceforge.net/index.php")
     (synopsis "Flexible command-line scientific calculator")
     (description "Wcalc is a very capable calculator.  It has standard functions
 (sin, asin, and sinh for example, in either radians or degrees), many
@@ -7890,7 +7890,7 @@ numeric differences and differences in numeric formats.")
             (invoke "make" "byte")
             (invoke "make" "install-lib")
             #t)))))
-    (home-page "http://why3.lri.fr")
+    (home-page "https://why3.lri.fr")
     (synopsis "Deductive program verification")
     (description "Why3 provides a language for specification and programming,
 called WhyML, and relies on external theorem provers, both automated and
@@ -7943,7 +7943,7 @@ of C, Java, or Ada programs.")
             (variable "FRAMAC_LIB")
             (files '("lib/frama-c"))
             (separator #f))))
-    (home-page "http://frama-c.com")
+    (home-page "https://frama-c.com")
     (synopsis "C source code analysis platform")
     (description "Frama-C is an extensible and collaborative platform dedicated
 to source-code analysis of C software.  The Frama-C analyzers assist you in
diff --git a/gnu/packages/mcrypt.scm b/gnu/packages/mcrypt.scm
index c0b9c815a5..e5e6338475 100644
--- a/gnu/packages/mcrypt.scm
+++ b/gnu/packages/mcrypt.scm
@@ -45,7 +45,7 @@
     (build-system gnu-build-system)
     (inputs
      (list zlib libmcrypt libmhash))
-    (home-page "http://mcrypt.sourceforge.net/")
+    (home-page "https://mcrypt.sourceforge.net/")
     (synopsis "Replacement for the popular Unix crypt command")
     (description
      "MCrypt is a replacement for the old crypt() package and crypt(1)
@@ -70,7 +70,7 @@ them.")
        (base32
         "0gipgb939vy9m66d3k8il98rvvwczyaw2ixr8yn6icds9c3nrsz4"))))
     (build-system gnu-build-system)
-    (home-page "http://mcrypt.sourceforge.net/")
+    (home-page "https://mcrypt.sourceforge.net/")
     (synopsis "Encryption algorithm library")
     (description
      "Libmcrypt is a data encryption library.  The library is thread safe and
@@ -97,7 +97,7 @@ XTEA, 3WAY, TWOFISH, BLOWFISH, ARCFOUR, WAKE and more.")
     (build-system gnu-build-system)
     (native-inputs
      (list perl))                 ;for tests
-    (home-page "http://mhash.sourceforge.net/")
+    (home-page "https://mhash.sourceforge.net/")
     (synopsis "Thread-safe hash library")
     (description
      "Mhash is a thread-safe hash library, implemented in C, and provides a
diff --git a/gnu/packages/minetest.scm b/gnu/packages/minetest.scm
index c5fc18f5d1..4c14d9412c 100644
--- a/gnu/packages/minetest.scm
+++ b/gnu/packages/minetest.scm
@@ -718,7 +718,7 @@ track of important locations.")
         (base32 "1q2jj8181pjgsakl28xadv0z4sszq1lb5rpgj070wr0px6mp447p"))
        (file-name (git-file-name name version))))
     (build-system minetest-mod-build-system)
-    (home-page "http://advtrains.de/")
+    (home-page "https://advtrains.de/")
     (synopsis "Adds good-looking, realistic trains with realistic rails")
     (description
      "This mod features realistic trains and various equipment for railways,
diff --git a/gnu/packages/monitoring.scm b/gnu/packages/monitoring.scm
index 629bb02acc..c0df1e501c 100644
--- a/gnu/packages/monitoring.scm
+++ b/gnu/packages/monitoring.scm
@@ -413,7 +413,7 @@ HTTP.  Features:
          "1bk29w09zcpsv8hp0g0al7nwrxa07z0ycls3mbh83wfavk83aprl"))))
     (build-system python-build-system)
     (native-inputs (list python-six))
-    (home-page "http://graphiteapp.org/")
+    (home-page "https://graphiteapp.org/")
     (synopsis "Fixed size round-robin style database for Graphite")
     (description "Whisper is one of three components within the Graphite
 project.  Whisper is a fixed-size database, similar in design and purpose to
@@ -443,7 +443,7 @@ historical data.")
            (lambda _ (setenv "GRAPHITE_NO_PREFIX" "1") #t)))))
     (propagated-inputs
      (list python-cachetools python-txamqp python-urllib3 python-whisper))
-    (home-page "http://graphiteapp.org/")
+    (home-page "https://graphiteapp.org/")
     (synopsis "Backend data caching and persistence daemon for Graphite")
     (description "Carbon is a backend data caching and persistence daemon for
 Graphite.  Carbon is responsible for receiving metrics over the network,
@@ -665,7 +665,7 @@ future system load (i.e., capacity planning).")
     (build-system gnu-build-system)
     (inputs (list ncurses))
     (arguments '(#:tests? #f)) ;; No included tests.
-    (home-page "http://www.maier-komor.de/hostscope.html")
+    (home-page "https://www.maier-komor.de/hostscope.html")
     (properties `((release-monitoring-url . ,home-page)))
     (synopsis
      "System monitoring tool for multiple hosts")
diff --git a/gnu/packages/mp3.scm b/gnu/packages/mp3.scm
index 03e4485618..3aa24c75ab 100644
--- a/gnu/packages/mp3.scm
+++ b/gnu/packages/mp3.scm
@@ -212,7 +212,7 @@ whose primary goals are full compliance with the ID3v2 standard, portability
 across several platforms, and providing a powerful and feature-rich API with
 a highly stable and efficient implementation.")
    (license license:lgpl2.0+)
-   (home-page "http://id3lib.sourceforge.net/")))
+   (home-page "https://id3lib.sourceforge.net/")))
 
 (define-public taglib
   (package
@@ -377,7 +377,7 @@ automatic silence split, that can be used also to adjust cddb/cue splitpoints.
 
 This package contains the library.")
    (license license:gpl2+)
-   (home-page "http://mp3splt.sourceforge.net/mp3splt_page/home.php")))
+   (home-page "https://mp3splt.sourceforge.net/mp3splt_page/home.php")))
 
 (define-public mp3splt
   (package
@@ -404,7 +404,7 @@ automatic silence split, that can be used also to adjust cddb/cue splitpoints.
 
 This package contains the binary.")
    (license license:gpl2+)
-   (home-page "http://mp3splt.sourceforge.net/mp3splt_page/home.php")))
+   (home-page "https://mp3splt.sourceforge.net/mp3splt_page/home.php")))
 
 (define-public mpg123
   (package
@@ -456,7 +456,7 @@ command-line tool as well as a C library, libmpg123.")
        ("libmad" ,libmad)
        ("libid3tag" ,libid3tag)
        ("libao" ,ao)))
-    (home-page "http://mpg321.sourceforge.net/")
+    (home-page "https://mpg321.sourceforge.net/")
     (synopsis "Command-line MP3 player")
     (description "Mpg321 is a command-line mp3 player.  mpg321 is used for
 frontends, as an mp3 player and as an mp3 to wave file decoder (primarily for
@@ -497,7 +497,7 @@ use with CD-recording software).")
                            Libs: -L${libdir} -lmp3lame~@
                            Cflags: -I${includedir}~%"
                            out ,version)))))))))
-    (home-page "http://lame.sourceforge.net/")
+    (home-page "https://lame.sourceforge.net/")
     (synopsis "MPEG Audio Layer III (MP3) encoder")
     (description "LAME is a high quality MPEG Audio Layer III (MP3) encoder.")
     (license license:lgpl2.0)))
diff --git a/gnu/packages/multiprecision.scm b/gnu/packages/multiprecision.scm
index b96efed843..080a8100df 100644
--- a/gnu/packages/multiprecision.scm
+++ b/gnu/packages/multiprecision.scm
@@ -158,7 +158,7 @@ correct rounding.")
 for performing arithmetic on complex numbers.  It supports arbitrarily high
 precision and correctly rounds the results.")
    (license lgpl3+)
-   (home-page "http://www.multiprecision.org/mpc/")))
+   (home-page "https://www.multiprecision.org/mpc/")))
 
 (define-public mpfi
   ;; The last release, 1.5.4, lacks source files such as div_ext.c and others
diff --git a/gnu/packages/music.scm b/gnu/packages/music.scm
index 42171ce127..f4a570189b 100644
--- a/gnu/packages/music.scm
+++ b/gnu/packages/music.scm
@@ -364,7 +364,7 @@ more.")
      (list wxwidgets glib alsa-lib))
     (native-inputs
      (list pkg-config))
-    (home-page "http://ariamaestosa.sourceforge.net/")
+    (home-page "https://ariamaestosa.sourceforge.net/")
     (synopsis "MIDI sequencer and editor")
     (description
      "Aria Maestosa is a MIDI sequencer and editor.  It lets you compose, edit
@@ -1308,7 +1308,7 @@ biographies, reviews and more.")
            jack-2
            json-c
            pulseaudio))
-    (home-page "http://lingot.nongnu.org/")
+    (home-page "https://lingot.nongnu.org/")
     (synopsis "Accurate & configurable musical instrument tuner")
     (description
      "LINGOT is a musical instrument tuner.  It's accurate, easy to use, and
@@ -2582,7 +2582,7 @@ Paul), and specifically the PaulXStretch version from Xenakios.")
            font-bitstream-vera))
     (native-inputs
      (list help2man pkg-config))
-    (home-page "http://setbfree.org")
+    (home-page "https://setbfree.org")
     (synopsis "Tonewheel organ")
     (description
      "setBfree is a MIDI-controlled, software synthesizer designed to imitate
@@ -2633,7 +2633,7 @@ Laurens Hammond and Don Leslie.")
      (list alsa-lib jack-2 liblo libx11))
     (native-inputs
      (list pkg-config))
-    (home-page "http://bristol.sourceforge.net/")
+    (home-page "https://bristol.sourceforge.net/")
     (synopsis "Synthesizer emulator")
     (description
      "Bristol is an emulation package for a number of different @code{classic}
@@ -2906,7 +2906,7 @@ main purpose is to liberate raw audio rendering from audio and MIDI drivers.")
      (list alsa-lib))
     (native-inputs
      (list unzip))
-    (home-page "http://portmedia.sourceforge.net/portmidi/")
+    (home-page "https://portmedia.sourceforge.net/portmidi/")
     (synopsis "Library for MIDI I/O")
     (description
      "PortMidi is a library supporting real-time input and output of MIDI data
@@ -2939,7 +2939,7 @@ using a system-independent interface.")
      (list portmidi alsa-lib))
     (native-inputs
      (list python-cython unzip))
-    (home-page "http://portmedia.sourceforge.net/portmidi/")
+    (home-page "https://portmedia.sourceforge.net/portmidi/")
     (synopsis "Python bindings to PortMidi")
     (description
      "This package provides Python bindings to the PortMidi library.")
@@ -3103,7 +3103,7 @@ instrument or MIDI file player.")
     (native-inputs
      (list pkg-config
            ruby))
-    (home-page "http://zynaddsubfx.sf.net/")
+    (home-page "https://zynaddsubfx.sf.net/")
     (synopsis "Software synthesizer")
     (description
      "ZynAddSubFX is a feature heavy realtime software synthesizer.  It offers
@@ -3165,7 +3165,7 @@ capabilities, custom envelopes, effects, etc.")
            zlib))
     (native-inputs
      (list pkg-config))
-    (home-page "http://yoshimi.sourceforge.net/")
+    (home-page "https://yoshimi.sourceforge.net/")
     (synopsis "Multi-paradigm software synthesizer")
     (description
      "Yoshimi is a fork of ZynAddSubFX, a feature-heavy real-time software
@@ -3366,7 +3366,7 @@ computer's keyboard.")
      (list minixml jack-1 alsa-lib))
     (native-inputs
      (list pkg-config))
-    (home-page "http://aj-snapshot.sourceforge.net/")
+    (home-page "https://aj-snapshot.sourceforge.net/")
     (synopsis "Snapshot connections between ALSA and JACK clients")
     (description "Aj-snapshot is a small program that can be used to make
 snapshots of the connections made between JACK and/or ALSA clients.  Because
@@ -4070,7 +4070,7 @@ modes available for improved Amiga ProTracker 2/3 compatibility.")
     (inputs
      (list alsa-lib ; for asound dependency
            libx11 libxext sdl))
-    (home-page "http://schismtracker.org")
+    (home-page "https://schismtracker.org")
     (synopsis "Oldschool sample-based music composition tool")
     (description
      "Schism Tracker is a reimplementation of Impulse Tracker, a program used to
@@ -4200,7 +4200,7 @@ formats, including most audio formats recognized by FFMpeg.")
     (version "1.1")
     (source (origin
               (method url-fetch)
-              (uri (string-append "http://www.fourmilab.ch/webtools/midicsv/"
+              (uri (string-append "https://www.fourmilab.ch/webtools/midicsv/"
                                   name "-" version ".tar.gz"))
               (sha256
                (base32
@@ -4218,7 +4218,7 @@ processed by a program to transform the MIDI data (for example, to key
 transpose a composition or extract a track from a multi-track sequence).  A
 CSV file in the format created by midicsv may be converted back into a
 standard MIDI file with the csvmidi program.")
-    (home-page "http://www.fourmilab.ch/webtools/midicsv/")
+    (home-page "https://www.fourmilab.ch/webtools/midicsv/")
     (license license:public-domain)))
 
 (define-public gx-guvnor-lv2
@@ -4583,7 +4583,7 @@ plugins, a switch trigger, a toggle switch, and a peakmeter.")
      (list qtbase-5 alsa-lib jack-1 liblo lv2))
     (native-inputs
      (list pkg-config qttools-5))
-    (home-page "http://qmidiarp.sourceforge.net/")
+    (home-page "https://qmidiarp.sourceforge.net/")
     (synopsis "MIDI arpeggiator")
     (description "QMidiArp is an advanced MIDI arpeggiator, programmable step
 sequencer and LFO.  It can hold any number of arpeggiator, sequencer, or LFO
@@ -4609,7 +4609,7 @@ modules running in parallel.")
      (list qtbase-5 alsa-lib))
     (native-inputs
      (list pkg-config qttools-5))
-    (home-page "http://alsamodular.sourceforge.net/")
+    (home-page "https://alsamodular.sourceforge.net/")
     (synopsis "MIDI event router and filter")
     (description "QMidiRoute is a MIDI event router and filter.  MIDI note,
 control change, program change and pitch bend events are logged, and can be
@@ -5105,7 +5105,7 @@ It is intended to be simple, GUI-toolkit-agnostic, and slightly biased
 towards familiarity with MIDI.  The DSSI distribution package contains
 a JACK/ALSA-sequencer reference host and some plugins as well as the
 specification and header.")
-    (home-page "http://dssi.sourceforge.net/")
+    (home-page "https://dssi.sourceforge.net/")
     ;; The DSSI interface is LGPL2.1+, some tests and examples are GPL2+.
     ;; The vast majority of examples are in the public domain.
     (license (list license:lgpl2.1+ license:gpl2+))))
@@ -6655,7 +6655,7 @@ plugin and a standalone JACK application.")
       (description "TAP (Tom's Audio Processing) plugins is a collection of
   audio effect plugins originally released as LADSPA plugins.  This package
   offers an LV2 version ported by moddevices.")
-      (home-page "http://tap-plugins.sourceforge.net/")
+      (home-page "https://tap-plugins.sourceforge.net/")
       (license license:gpl2))))
 
 (define-public wolf-shaper
@@ -6796,7 +6796,7 @@ It is provided as an LV2 plugin and as a standalone Jack application.")
       (description "Shiru plugins is a collection of audio plugins created
   by Shiru, ported to LV2 by the Linux MAO project using the DISTRHO plugin
   framework.")
-      (home-page "http://shiru.untergrund.net/software.shtml")
+      (home-page "https://shiru.untergrund.net/software.shtml")
       (license license:wtfpl2))))
 
 (define-public a2jmidid
diff --git a/gnu/packages/ncurses.scm b/gnu/packages/ncurses.scm
index 5b00da25bb..c33b0a2511 100644
--- a/gnu/packages/ncurses.scm
+++ b/gnu/packages/ncurses.scm
@@ -354,7 +354,7 @@ of your system.")
                (symlink "libstfl.so" (string-append lib "/libstfl.so.0"))))))))
     (inputs (list ncurses))
     (native-inputs (list swig))
-    (home-page "http://www.clifford.at/stfl/")
+    (home-page "https://www.clifford.at/stfl/")
     (synopsis "Structured terminal forms library")
     (description "Stfl is a library which implements a curses-based widget
 set for text terminals.")
diff --git a/gnu/packages/netpbm.scm b/gnu/packages/netpbm.scm
index 5f3dcdb8ea..489a3c7a43 100644
--- a/gnu/packages/netpbm.scm
+++ b/gnu/packages/netpbm.scm
@@ -191,4 +191,4 @@ the conversion of images between a variety of different formats.
 There are over 300 separate tools in the package including converters for
 about 100 graphics formats.")
    (license gpl2)
-   (home-page "http://netpbm.sourceforge.net/")))
+   (home-page "https://netpbm.sourceforge.net/")))
diff --git a/gnu/packages/networking.scm b/gnu/packages/networking.scm
index b5c0758dd5..b5e8afc728 100644
--- a/gnu/packages/networking.scm
+++ b/gnu/packages/networking.scm
@@ -675,7 +675,7 @@ the Stream Control Transmission Protocol} (@file{libsctp}) and C language header
 files (@file{netinet/sctp.h}) for accessing SCTP-specific @acronym{APIs,
 application programming interfaces} not provided by the standard sockets.
 It also includes some SCTP-related helper utilities.")
-    (home-page "http://lksctp.sourceforge.net/")
+    (home-page "https://lksctp.sourceforge.net/")
     (license
      (list
       ;; Library.
@@ -1239,7 +1239,7 @@ or server shell scripts with network connections.")
     (native-inputs
      (list which))
     (inputs (list openssl))
-    (home-page "http://www.maier-komor.de/mbuffer.html")
+    (home-page "https://www.maier-komor.de/mbuffer.html")
     (synopsis
      "Swiss army knife for data stream buffering (network aware)")
     (description
@@ -1564,7 +1564,7 @@ Ethernet devices.")
                                  (string-append bin "/ifstatus")))
                     #t)))))
     (inputs (list ncurses))
-    (home-page "http://ifstatus.sourceforge.net/graphic/index.html")
+    (home-page "https://ifstatus.sourceforge.net/graphic/index.html")
     (synopsis "Text based network interface status monitor")
     (description
      "IFStatus is a simple, easy-to-use program for displaying commonly
@@ -3899,7 +3899,7 @@ protocol daemons for BGP, IS-IS, LDP, OSPF, PIM, and RIP.")
              (substitute* "Makefile.in"
                ((" \\$\\(DESTDIR)/\\$\\(runstatedir)") "")))))))
     (build-system gnu-build-system)
-    (home-page "http://bird.network.cz")
+    (home-page "https://bird.network.cz")
     (synopsis "Internet Routing Daemon")
     (description "BIRD is an Internet routing daemon with full support for all
 the major routing protocols.  It allows redistribution between protocols with a
@@ -4136,7 +4136,7 @@ easy-to-understand binary values.")
                     (bin (string-append out "/bin")))
                (install-file "tunctl" bin))
              #t)))))
-    (home-page "http://tunctl.sourceforge.net")
+    (home-page "https://tunctl.sourceforge.net")
     (synopsis  "Utility to set up and maintain TUN/TAP network interfaces")
     (description "Tunctl is used to set up and maintain persistent TUN/TAP
 network interfaces, enabling user applications to simulate network traffic.
@@ -4193,7 +4193,7 @@ network.  This must be enabled on the target host, usually in the BIOS.")
                ((" \\$\\(LIBDEPS\\)") "$(filter-out -l%,$(LIBDEPS))"))))
          (delete 'bootstrap)            ;no configure.ac file
          (delete 'configure))))         ;no configure script
-    (home-page "http://traceroute.sourceforge.net/")
+    (home-page "https://traceroute.sourceforge.net/")
     (synopsis "Tracks the route taken by packets over an IP network")
     (description "This package provides a modern, but Linux-specific
 implementation of the @command{traceroute} command that can be used to follow
diff --git a/gnu/packages/node-xyz.scm b/gnu/packages/node-xyz.scm
index a1e89f1759..991113c05b 100644
--- a/gnu/packages/node-xyz.scm
+++ b/gnu/packages/node-xyz.scm
@@ -236,7 +236,7 @@ user-land JavaScript.")
           "034iaiq2pdqn342p2404cpz364g282d2hkp9375hysnh9i968wbb"))))
     (build-system node-build-system)
     (arguments '(#:tests? #f)) ; No tests.
-    (home-page "http://www.enchantedage.com/node-mersenne")
+    (home-page "https://www.enchantedage.com/node-mersenne")
     (synopsis "Node.js module for generating Mersenne Twister random numbers")
     (description "This package provides a node.js port of the Mersenne Twister
 random number generator.")
diff --git a/gnu/packages/ntp.scm b/gnu/packages/ntp.scm
index a27c1c6a12..607799f348 100644
--- a/gnu/packages/ntp.scm
+++ b/gnu/packages/ntp.scm
@@ -216,7 +216,7 @@ computers over a network.")
              #t)))))
     (inputs
      (list libressl)) ; enable TLS time constraints. See ntpd.conf(5).
-    (home-page "http://www.openntpd.org/")
+    (home-page "https://www.openntpd.org/")
     (synopsis "NTP client and server by the OpenBSD Project")
     (description "OpenNTPD is the OpenBSD Project's implementation of a client
 and server for the Network Time Protocol.  Its design goals include being
diff --git a/gnu/packages/ocaml.scm b/gnu/packages/ocaml.scm
index dae050af50..55f189efcd 100644
--- a/gnu/packages/ocaml.scm
+++ b/gnu/packages/ocaml.scm
@@ -966,7 +966,7 @@ name = Guix Builder")
      ;; OPAM is used as a tool and not as a library, we can use the OCaml 4.14
      ;; compiled opam until opam is compatible with OCaml 5.0.
      `((ocaml5.0-variant . ,(delay opam))))
-    (home-page "http://opam.ocamlpro.com/")
+    (home-page "https://opam.ocamlpro.com/")
     (synopsis "Package manager for OCaml")
     (description
      "OPAM is a tool to manage OCaml packages.  It supports multiple
@@ -1134,7 +1134,7 @@ concrete syntax of the language (Quotations, Syntax Extensions).")
                       (substitute* "_tags"
                         (("/bin/sh") (which "sh")))
                       #t)))))
-    (home-page "http://hevea.inria.fr/")
+    (home-page "https://hevea.inria.fr/")
     (synopsis "LaTeX to HTML translator")
     (description
      "HeVeA is a LaTeX to HTML translator that generates modern HTML 5.  It is
@@ -1242,7 +1242,7 @@ Emacs.")
     (arguments
      `(#:tests? #f)) ; No check target
     (properties `((ocaml4.07-variant . ,(delay (strip-ocaml4.07-variant ocaml-menhir)))))
-    (home-page "http://gallium.inria.fr/~fpottier/menhir/")
+    (home-page "https://gallium.inria.fr/~fpottier/menhir/")
     (synopsis "Parser generator")
     (description "Menhir is a parser generator.  It turns high-level grammar
 specifications, decorated with semantic actions expressed in the OCaml
@@ -5019,7 +5019,7 @@ Format module of the OCaml standard library.")
        ("ocaml-sedlex" ,ocaml-sedlex)
        ("ocaml-easy-format" ,ocaml-easy-format)
        ("ocaml-base64" ,ocaml-base64)))
-    (home-page "http://piqi.org")
+    (home-page "https://piqi.org")
     (synopsis "Data serialization and conversion library")
     (description "Piqilib is the common library used by the piqi command-line
 tool and piqi-ocaml.")
@@ -5093,7 +5093,7 @@ and 4 (random based) according to RFC 4122.")
                      (search-input-file inputs "/bin/sh")))))))
     (inputs (list lablgtk))
     (properties `((upstream-name . "ocamlgraph")))
-    (home-page "http://ocamlgraph.lri.fr/")
+    (home-page "https://ocamlgraph.lri.fr/")
     (synopsis "Graph library for OCaml")
     (description "OCamlgraph is a generic graph library for OCaml.")
     (license license:lgpl2.1)))
@@ -6226,7 +6226,7 @@ the OCaml language.")
                                "/lib/ocaml/site-lib/num"
                                " $(FUNCTORYLIB)")))
              #t)))))
-    (home-page "http://cubicle.lri.fr/")
+    (home-page "https://cubicle.lri.fr/")
     (synopsis "Model checker for array-based systems")
     (description "Cubicle is a model checker for verifying safety properties
 of array-based systems.  This is a syntactically restricted class of
diff --git a/gnu/packages/opencl.scm b/gnu/packages/opencl.scm
index fdfb7d0a27..8cf90698ea 100644
--- a/gnu/packages/opencl.scm
+++ b/gnu/packages/opencl.scm
@@ -381,7 +381,7 @@ A lexer, @code{pytools.lex}.
      (list opencl-headers pybind11 opencl-icd-loader))                     ;libOpenCL
     (propagated-inputs
      (list python-appdirs python-numpy python-pytools python-mako))
-    (home-page "http://mathema.tician.de/software/pyopencl")
+    (home-page "https://mathema.tician.de/software/pyopencl")
     (synopsis "Python wrapper for OpenCL")
     (description
      "PyOpenCL lets you access parallel computing devices such as GPUs from
diff --git a/gnu/packages/package-management.scm b/gnu/packages/package-management.scm
index 618bb70564..3efcadb50d 100644
--- a/gnu/packages/package-management.scm
+++ b/gnu/packages/package-management.scm
@@ -824,7 +824,7 @@ symlinks to the files in a common directory such as /usr/local.")
     (description
      "XStow is a replacement of GNU Stow written in C++.  It supports all
 features of Stow with some extensions.")
-    (home-page "http://xstow.sourceforge.net/")
+    (home-page "https://xstow.sourceforge.net/")
     (license license:gpl2)))
 
 (define-public rpm
@@ -2143,7 +2143,7 @@ from R7RS, which allows most R7RS code to run on R6RS implementations.")
       (list dejagnu autoconf which))
     (inputs
       (list tcl less procps coreutils python-3))
-    (home-page "http://modules.sourceforge.net/")
+    (home-page "https://modules.sourceforge.net/")
     (synopsis "Shell environment variables and aliases management")
     (description "Modules simplify shell initialization and let users
 modify their environment during the session with modulefiles.  Modules are
diff --git a/gnu/packages/parallel.scm b/gnu/packages/parallel.scm
index e2a6cfb668..2c81f4d50a 100644
--- a/gnu/packages/parallel.scm
+++ b/gnu/packages/parallel.scm
@@ -172,7 +172,7 @@ execution is also possible.")
     (arguments `(#:tests? #f)) ;; No tests
     (native-inputs
      (list flex which))
-    (home-page "http://www.maier-komor.de/xjobs.html")
+    (home-page "https://www.maier-komor.de/xjobs.html")
     (properties `((release-monitoring-url . ,home-page)))
     (synopsis
      "Parallel execution of jobs with several useful options")
diff --git a/gnu/packages/pdf.scm b/gnu/packages/pdf.scm
index f0aefb39e8..c040afcae7 100644
--- a/gnu/packages/pdf.scm
+++ b/gnu/packages/pdf.scm
@@ -719,7 +719,7 @@ interaction.")
                ;; Look for freetype include files in the correct place.
                (substitute* "cmake/modules/FindFREETYPE.cmake"
                  (("/usr/local") freetype))))))))
-    (home-page "http://podofo.sourceforge.net")
+    (home-page "https://podofo.sourceforge.net")
     (synopsis "Tools to work with the PDF file format")
     (description
      "PoDoFo is a C++ library and set of command-line tools to work with the
@@ -883,7 +883,7 @@ program capable of converting PDF into other formats.")
    ;; Prior to the 7.0 release, QPDF was licensed under Artistic 2.0.
    ;; Users can still choose to use the old license at their option.
    (license (list license:asl2.0 license:clarified-artistic))
-   (home-page "http://qpdf.sourceforge.net/")))
+   (home-page "https://qpdf.sourceforge.net/")))
 
 (define-public qpdfview
   (package
@@ -942,7 +942,7 @@ SyncTeX support, and rudimentary support for annotations and forms.")
      (list gtk+-2 pango poppler glib libgnomecanvas))
     (native-inputs
      (list pkg-config))
-    (home-page "http://xournal.sourceforge.net/")
+    (home-page "https://xournal.sourceforge.net/")
     (synopsis "Notetaking using a stylus")
     (description
      "Xournal is an application for notetaking, sketching, keeping a journal
@@ -1121,7 +1121,7 @@ vector formats.")
                 (install-file "impressive.1" man1)))))))
     ;; TODO: Add dependency on pdftk.
     (inputs (list python-pygame python-pillow sdl xpdf))
-    (home-page "http://impressive.sourceforge.net")
+    (home-page "https://impressive.sourceforge.net")
     (synopsis "PDF presentation tool with visual effects")
     (description
      "Impressive is a tool to display PDF files that provides visual effects
diff --git a/gnu/packages/perl.scm b/gnu/packages/perl.scm
index 295f8dd141..7b97e7adfa 100644
--- a/gnu/packages/perl.scm
+++ b/gnu/packages/perl.scm
@@ -6564,7 +6564,7 @@ both positive and negative, in various ways.")
                (base32
                 "03bdcl9pn2bc9b50c50nhnr7m9wafylnb3v21zlch98h9c78x6j0"))))
     (build-system perl-build-system)
-    (home-page "http://search.cpan.org/dist/Math-VecStat")
+    (home-page "https://search.cpan.org/dist/Math-VecStat")
     (synopsis "Basic numeric stats on vectors")
     (description "This package provides some basic statistics on numerical
 vectors.  All the subroutines can take a reference to the vector to be
@@ -10918,7 +10918,7 @@ as exceptions to standard program flow.")
                (base32
                 "0w1k5ffcrpx0fm9jgprrwy0290k6cmy7dyk83s61063migi3r5z9"))))
     (build-system perl-build-system)
-    (home-page "http://perltidy.sourceforge.net/")
+    (home-page "https://perltidy.sourceforge.net/")
     (synopsis "Perl script tidier")
     (description "This package contains a Perl script which indents and
 reformats Perl scripts to make them easier to read.   The formatting can be
diff --git a/gnu/packages/photo.scm b/gnu/packages/photo.scm
index d658b3d3e7..358247f32e 100644
--- a/gnu/packages/photo.scm
+++ b/gnu/packages/photo.scm
@@ -351,7 +351,7 @@ and a wide variety of other metadata.")
      (list perl))                       ; for pod2man
     (inputs
      (list libjpeg-turbo libpng libtiff zlib))
-    (home-page "http://panotools.sourceforge.net/")
+    (home-page "https://panotools.sourceforge.net/")
     (synopsis "Library for panoramic images")
     (description
      "The libpano13 package contains the backend library written by the
@@ -406,7 +406,7 @@ overlapping images, as well as some command line tools.")
                      ;; Fix error: ‘numeric_limits’ is not a member of ‘std’.
                      (("#include <vector>" line)
                       (string-append line "\n#include <limits>"))))))))
-    (home-page "http://enblend.sourceforge.net/")
+    (home-page "https://enblend.sourceforge.net/")
     (synopsis "Tools for combining and blending images")
     (description
      "Enblend blends away the seams in a panoramic image mosaic using a
@@ -746,7 +746,7 @@ off' shooting directly from the controlling computer.")
                 (string-append "wxT(\"" (which "enblend") "\")"))
                (("wxT\\(\"enfuse\"\\)")
                 (string-append "wxT(\"" (which "enfuse") "\")"))))))))
-    (home-page "http://hugin.sourceforge.net/")
+    (home-page "https://hugin.sourceforge.net/")
     (synopsis "Panorama photo stitcher")
     (description
      "Hugin is an easy to use panoramic imaging toolchain with a graphical
diff --git a/gnu/packages/plan9.scm b/gnu/packages/plan9.scm
index 73694c4ed3..318344f2ec 100644
--- a/gnu/packages/plan9.scm
+++ b/gnu/packages/plan9.scm
@@ -57,7 +57,7 @@
       (inputs
        (list libx11 libxt))
       (synopsis "Connect to Plan 9 systems")
-      (home-page "http://drawterm.9front.org")
+      (home-page "https://drawterm.9front.org")
       (description
        "@command{drawterm} is a client for connecting venerable systems to
 Plan 9 systems.  It behaves like a Plan 9 kernel and will attempt to
diff --git a/gnu/packages/plotutils.scm b/gnu/packages/plotutils.scm
index fd40f79c73..963587ca2e 100644
--- a/gnu/packages/plotutils.scm
+++ b/gnu/packages/plotutils.scm
@@ -194,7 +194,7 @@ went to university in the 1990s, this is the library for you.")
        (list autoconf automake texinfo pkg-config))
       (inputs (list guile-3.0))
       (propagated-inputs (list guile-cairo))
-      (home-page "http://wingolog.org/projects/guile-charting/")
+      (home-page "https://wingolog.org/projects/guile-charting/")
       (synopsis "Create charts and graphs in Guile")
       (description
        "Guile-Charting is a Guile Scheme library to create bar charts and graphs
@@ -259,7 +259,7 @@ using the Cairo drawing library.")
                           `("PLOTICUS_PREFABS" ":" = (,dir)))))))))
     (inputs
      (list libpng libx11 zlib))
-    (home-page "http://ploticus.sourceforge.net/")
+    (home-page "https://ploticus.sourceforge.net/")
     (synopsis "Command-line tool for producing plots and charts")
     (description
      "Ploticus is a non-interactive software package for producing plots,
diff --git a/gnu/packages/popt.scm b/gnu/packages/popt.scm
index 16ff2c3448..4e3baee408 100644
--- a/gnu/packages/popt.scm
+++ b/gnu/packages/popt.scm
@@ -42,7 +42,7 @@
               (base32
                "1gyxf4bh9jp5gb3l6g5qy90zzcf3vcpk0irgwbv1lc6mrskyhxwg"))))
     (build-system gnu-build-system)
-    (home-page "http://argtable.sourceforge.net/")
+    (home-page "https://argtable.sourceforge.net/")
     (synopsis "Command line option parsing library")
     (description
      "Argtable is an ANSI C library for parsing GNU style command line
@@ -78,7 +78,7 @@ line syntax.")
              (substitute* "tests/testit.sh"   ;don't expect old libtool names
                (("lt-test1") "test1"))
              #t)))))
-    (home-page "http://rpm5.org/files/popt/")
+    (home-page "https://rpm5.org/files/popt/")
     (synopsis "Command line option parsing library")
     (description
      "This is the popt(3) command line option parsing library.  While it is
diff --git a/gnu/packages/profiling.scm b/gnu/packages/profiling.scm
index d4993060b2..8a1c609669 100644
--- a/gnu/packages/profiling.scm
+++ b/gnu/packages/profiling.scm
@@ -167,7 +167,7 @@ performance measurement opportunites across the hardware and software stack.")
                            (install-file "COPYING" doc)))
                        '("lib" "doc"))
              #t)))))
-    (home-page "http://www.vi-hps.org/projects/score-p/")
+    (home-page "https://www.vi-hps.org/projects/score-p/")
     (synopsis "Open Trace Format 2 library")
     (description "The Open Trace Format 2 (@dfn{OTF2}) is a scalable,
 memory-efficient event trace data format plus support library.")
@@ -379,7 +379,7 @@ different kinds of performance behavior.")
                                        "/share/doc/scorep")))
                (install-file "COPYING" doc)
                #t))))))
-    (home-page "http://www.vi-hps.org/projects/score-p/")
+    (home-page "https://www.vi-hps.org/projects/score-p/")
     (synopsis "Performance measurement infrastructure for parallel code")
     (description
      "The Score-P (Scalable Performance Measurement Infrastructure for
diff --git a/gnu/packages/pulseaudio.scm b/gnu/packages/pulseaudio.scm
index 96ba13d484..75aca3d700 100644
--- a/gnu/packages/pulseaudio.scm
+++ b/gnu/packages/pulseaudio.scm
@@ -254,7 +254,7 @@ rates.")
     (propagated-inputs
      ;; 'libpulse*.la' contain `-ltdb' and `-lcap', so propagate them.
      (list libcap tdb))
-    (home-page "http://www.pulseaudio.org/")
+    (home-page "https://www.pulseaudio.org/")
     (synopsis "Sound server")
     (description
      "PulseAudio is a sound server.  It is basically a proxy for your sound
diff --git a/gnu/packages/python-check.scm b/gnu/packages/python-check.scm
index 04c369b482..41a6997190 100644
--- a/gnu/packages/python-check.scm
+++ b/gnu/packages/python-check.scm
@@ -1864,7 +1864,7 @@ supported by the MyPy typechecker.")
            python-virtualenv))
     (propagated-inputs
      (list python-mypy-extensions python-tomli python-typing-extensions))
-    (home-page "http://www.mypy-lang.org/")
+    (home-page "https://www.mypy-lang.org/")
     (synopsis "Static type checker for Python")
     (description "Mypy is an optional static type checker for Python that aims
 to combine the benefits of dynamic typing and static typing.  Mypy combines
diff --git a/gnu/packages/python-web.scm b/gnu/packages/python-web.scm
index 758cd9124c..8c5b185e3f 100644
--- a/gnu/packages/python-web.scm
+++ b/gnu/packages/python-web.scm
@@ -1855,7 +1855,7 @@ for clients and servers.")
      (list unzip))               ; for unpacking the source
     (arguments
      `(#:tests? #f))                    ; tests require python-pbr < 1.7.0
-    (home-page "http://cthedot.de/cssutils/")
+    (home-page "https://cthedot.de/cssutils/")
     (synopsis
       "CSS Cascading Style Sheets library for Python")
     (description
@@ -6107,7 +6107,7 @@ displaying warnings when usaged in application code.")
                (base32
                 "0bdpcnd9pv0131dl08h4zbcwmgc45lyvq3pa224xwan5b3x4rr2f"))))
     (build-system python-build-system)
-    (home-page "http://docs.pylonsproject.org/projects/translationstring")
+    (home-page "https://docs.pylonsproject.org/projects/translationstring")
     (synopsis "Internationalization tooling for the Pylons project")
     (description "This package provides a library used by various Pylons
 project packages for internationalization (i18n) duties related to
diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index 55f8fd3166..f1b137f867 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.scm
@@ -2525,7 +2525,7 @@ a library.")
     (build-system python-build-system)
     (arguments
      `(#:tests? #f))                   ;test suite not included in the release
-    (home-page "http://www.grantjenks.com/docs/diskcache/")
+    (home-page "https://www.grantjenks.com/docs/diskcache/")
     (synopsis "Disk and file backed cache library")
     (description "DiskCache is a disk and file backed persistent cache.")
     (license license:asl2.0)))
@@ -3180,7 +3180,7 @@ other Python program.")
                (base32
                 "1f0jjqvamly4hn7f1palvq27z6yr694rfzyxrb6g0ysbbawxkvq9"))))
     (build-system python-build-system)
-    (home-page "http://agateau.com/projects/doxyqml")
+    (home-page "https://agateau.com/projects/doxyqml")
     (synopsis "Doxygen input filter for QML files")
     (description
      "This package provides a Doxygen input filter for QML files.")
@@ -4862,7 +4862,7 @@ leaf preserving the overall structure.")
                           (invoke "python" "test/alltests.py")
                           (format #t "test suite not run~%"))
                       #t)))))
-    (home-page "http://docutils.sourceforge.net/")
+    (home-page "https://docutils.sourceforge.net/")
     (synopsis "Python Documentation Utilities")
     (description
      "Docutils is a modular system for processing documentation into useful
@@ -8611,7 +8611,7 @@ wraps Python's standard library threading and multiprocessing objects.")
        ("bash-full" ,bash)))                 ;full Bash for 'test_replwrap.py'
     (propagated-inputs
      (list python-ptyprocess))
-    (home-page "http://pexpect.readthedocs.org/")
+    (home-page "https://pexpect.readthedocs.org/")
     (synopsis "Controlling interactive console applications")
     (description
      "Pexpect is a pure Python module for spawning child applications;
@@ -8673,7 +8673,7 @@ older Python versions.")
                 "1hq626mx5jl9zfl0wdrjkxsnh8qd98fqv322n68b9251xjk4bxqr"))))
     (build-system python-build-system)
     (native-inputs (list python-setuptools-scm python-toml))
-    (home-page "http://importlib-resources.readthedocs.io/")
+    (home-page "https://importlib-resources.readthedocs.io/")
     (synopsis "Read resources from Python packages")
     (description
      "@code{importlib_resources} is a backport of Python 3's standard library
@@ -8962,7 +8962,7 @@ releases.")
     (build-system python-build-system)
     (native-inputs
      (list unzip))
-    (home-page "http://cheeseshop.python.org/pypi/simplegeneric")
+    (home-page "https://cheeseshop.python.org/pypi/simplegeneric")
     (synopsis "Python module for simple generic functions")
     (description
      "The simplegeneric module lets you define simple single-dispatch generic
@@ -9695,7 +9695,7 @@ computing.")
               ;; https://salsa.debian.org/python-team/packages/urwid/-/blob/debian/2.1.2-2/debian/changelog#L141
               (lambda _
                 (delete-file "urwid/tests/test_vterm.py"))))))
-    (home-page "http://urwid.org")
+    (home-page "https://urwid.org")
     (synopsis "Console user interface library for Python")
     (description
      "Urwid is a curses-based UI/widget library for Python.  It includes many
@@ -12395,7 +12395,7 @@ native modules.")
     (build-system python-build-system)
     (native-inputs
      (list python-pytest))
-    (home-page "http://www.python-excel.org/")
+    (home-page "https://www.python-excel.org/")
     (synopsis "Library for extracting data from Excel files")
     (description "This package provides a library to extract data from
 spreadsheets using Microsoft Excel proprietary file formats @samp{.xls} and
@@ -12427,7 +12427,7 @@ Unicode-aware.  It is not intended as an end-user tool.")
                (invoke "nosetests" "-v")))))))
     (native-inputs
      `(("nose" ,python-nose)))
-    (home-page "http://www.python-excel.org/")
+    (home-page "https://www.python-excel.org/")
     (synopsis "Library for creating spreadsheet Excel files")
     (description "@code{xlwt} is a library for writing data and formatting
 information to older Excel files (i.e. .xls).  The package itself is pure
@@ -12892,7 +12892,7 @@ primary use case is APIs defined before keyword-only parameters existed.")
         (base32
          "1fnhbi3rmk47l9851gbik0flfr64vs5j0hbqx24cafjap6gprxxf"))))
     (build-system python-build-system)
-    (home-page "http://pyasn1.sourceforge.net/")
+    (home-page "https://pyasn1.sourceforge.net/")
     (synopsis "ASN.1 types and codecs")
     (description
      "This is an implementation of ASN.1 types and codecs in Python.  It is
@@ -14490,7 +14490,7 @@ tasks.  It includes single-command deployment for the Django Girls tutorial.")
                         #t))))
        #:tests? #f))
     (propagated-inputs (list dialog))
-    (home-page "http://pythondialog.sourceforge.net/")
+    (home-page "https://pythondialog.sourceforge.net/")
     (synopsis "Python interface to the UNIX dialog utility")
     (description
      "A Python wrapper for the dialog utility.  Its purpose is to
@@ -16980,7 +16980,7 @@ multiple processes (imagine multiprocessing, billiard, futures, celery etc).
                           (("logging\\.DEBUG")
                            "logging.INFO"))
                         (invoke "python" "-m" "unittest" "t/test.py")))))))
-    (home-page "http://tftpy.sourceforge.net/")
+    (home-page "https://tftpy.sourceforge.net/")
     (synopsis "Python trivial file transfer protocol (TFTP) library")
     (description "TFTPy is a trivial file transfer protocol (TFTP) Python
 library.  It can be used to act both as a TFTP client or TFTP server.")
@@ -19082,7 +19082,7 @@ numbers, real numbers, mixed types and more, and comes with a shell command
                (search-patches "python-random2-getrandbits-test.patch"))))
     (build-system python-build-system)
     (native-inputs (list unzip))
-    (home-page "http://pypi.python.org/pypi/random2")
+    (home-page "https://pypi.python.org/pypi/random2")
     (synopsis "Python 3 version of the Python 2 @code{random} module")
     (description
      "This package provides a Python 3 ported version of Python 2.7’s
@@ -20862,7 +20862,7 @@ while only declaring the test-specific fields.")
     (build-system python-build-system)
     (native-inputs
      (list python-pytest))
-    (home-page "http://arcp.readthedocs.io/")
+    (home-page "https://arcp.readthedocs.io/")
     (synopsis
      "Archive and Package URI parser and generator")
     (description
@@ -21303,7 +21303,7 @@ functionality like full case-folding for case-insensitive matches in Unicode.")
                 (string-append "'" (assoc-ref inputs "mesa") "/lib/libGLESv2.so'")))
                ;; Not providing libgle. It seems to be very old.
              #t)))))
-    (home-page "http://pyopengl.sourceforge.net")
+    (home-page "https://pyopengl.sourceforge.net")
     (synopsis "Standard OpenGL bindings for Python")
     (description
      "PyOpenGL is the most common cross platform Python binding to OpenGL and
@@ -23914,7 +23914,7 @@ that is accessible to other projects developed in Cython.")
     (propagated-inputs
      (list python-sortedcontainers))
     (arguments '(#:tests? #f))  ; Tests not included in release tarball.
-    (home-page "http://www.grantjenks.com/docs/sortedcollections/")
+    (home-page "https://www.grantjenks.com/docs/sortedcollections/")
     (synopsis "Python Sorted Collections")
     (description "Sorted Collections is a Python sorted collections library.")
     (license license:asl2.0)))
@@ -23940,7 +23940,7 @@ that is accessible to other projects developed in Cython.")
        ("python-distlib" ,python-distlib)
        ("python-filelock" ,python-filelock)
        ("python-six" ,python-six-bootstrap)))
-    (home-page "http://www.grantjenks.com/docs/sortedcontainers/")
+    (home-page "https://www.grantjenks.com/docs/sortedcontainers/")
     (synopsis "Sorted List, Sorted Dict, Sorted Set")
     (description
      "This package provides a sorted collections library, written in
@@ -30094,7 +30094,7 @@ PyRSS2Gen builds the feed up by using a XML generator.")
         (sha256
           (base32 "12rznbnswfw0w7qfbvmmffr9r317gl1rqg36nijwzsklkjgks4fq"))))
     (build-system python-build-system)
-    (home-page "http://yapsy.sourceforge.net")
+    (home-page "https://yapsy.sourceforge.net")
     (synopsis "Simple plugin system for Python applications")
     (description "Yapsy, or Yet Another Plugin SYstem, is a small library
 implementing the core mechanisms needed to build a plugin system into a wider
@@ -30747,7 +30747,7 @@ running and analyzing benchmarks.  It features a simple API that can:
               (when tests?
                 (invoke "pytest")))))))
     (native-inputs (list python-pytest))
-    (home-page "http://pydispatcher.sourceforge.net")
+    (home-page "https://pydispatcher.sourceforge.net")
     (synopsis "Multi-producer-multi-consumer signal dispatching mechanism")
     (description "PyDispatcher is an enhanced version of Patrick K. O’Brien’s
 original @code{dispatcher.py} module.  It provides the Python programmer with
@@ -30805,7 +30805,7 @@ fashion.")
                    (substitute* "prober.py"
                      (("cmd = .cc")
                       (string-append "cmd = \"" #$(cc-for-target)))))))))
-    (home-page "http://semanchuk.com/philip/posix_ipc/")
+    (home-page "https://semanchuk.com/philip/posix_ipc/")
     (synopsis "POSIX IPC primitives for Python")
     (description
      "This package provides POSIX IPC primitives - semaphores, shared memory and
diff --git a/gnu/packages/qt.scm b/gnu/packages/qt.scm
index 01327f6ccf..a3807b8c23 100644
--- a/gnu/packages/qt.scm
+++ b/gnu/packages/qt.scm
@@ -3829,7 +3829,7 @@ that can be only started once per user.
              (for-each delete-file (find-files "doc/man/man3" "^_tmp.*"))
              (mkdir-p man)
              (copy-recursively "doc/man" man)))))))
-  (home-page "http://qwt.sourceforge.net")
+  (home-page "https://qwt.sourceforge.net")
   (synopsis "Qt widgets for plots, scales, dials and other technical software
 GUI components")
   (description
@@ -4284,7 +4284,7 @@ generate Python bindings for your C or C++ code.")))
      (list qtbase-5 qttools-5))
     (inputs
      (list glu))
-    (home-page "http://libqglviewer.com")
+    (home-page "https://libqglviewer.com")
     (synopsis "Qt-based C++ library for the creation of OpenGL 3D viewers")
     (description
      "@code{libQGLViewer} is a C++ library based on Qt that eases the creation
@@ -4585,7 +4585,7 @@ a secure way.")
                    (invoke "qmake"
                            (string-append "PREFIX=" #$output)
                            (string-append "LIBDIR=" #$output "/lib")))))))
-    (home-page "http://accounts-sso.gitlab.io/signond/index.html")
+    (home-page "https://accounts-sso.gitlab.io/signond/index.html")
     (synopsis "Perform user authentication over D-Bus")
     (description "This package provides a D-Bus service which performs user
 authentication on behalf of its clients.")
diff --git a/gnu/packages/radio.scm b/gnu/packages/radio.scm
index b9612ffd56..59baf72cab 100644
--- a/gnu/packages/radio.scm
+++ b/gnu/packages/radio.scm
@@ -1902,7 +1902,7 @@ methods:
              (substitute* "src/libcw/libcw_pa.c"
                (("libpulse-simple.so" all)
                 (search-input-file inputs "/lib/libpulse-simple.so"))))))))
-    (home-page "http://unixcw.sourceforge.net/")
+    (home-page "https://unixcw.sourceforge.net/")
     (synopsis "Morse code library and programs")
     (description
      "@code{unixcw} is a project providing the libcw library and a set of
@@ -1971,7 +1971,7 @@ intended for people who want to learn receiving and sending morse code.")
              (substitute* "src/cfgfile.c"
                (("/usr/share/")
                 (string-append (assoc-ref outputs "out") "/share/"))))))))
-    (home-page "http://gnuais.sourceforge.net/")
+    (home-page "https://gnuais.sourceforge.net/")
     (synopsis "AIS message demodulator and decoder")
     (description
      "This program contains algorithms to demodulate and decode AIS (Automatic
diff --git a/gnu/packages/raspberry-pi.scm b/gnu/packages/raspberry-pi.scm
index 4c7da7376b..210b1a6e64 100644
--- a/gnu/packages/raspberry-pi.scm
+++ b/gnu/packages/raspberry-pi.scm
@@ -81,7 +81,7 @@
     (synopsis "C library for Broadcom BCM 2835 as used in Raspberry Pi")
     (description "This package provides a C library for Broadcom BCM 2835 as
 used in the Raspberry Pi")
-    (home-page "http://www.airspayce.com/mikem/bcm2835/")
+    (home-page "https://www.airspayce.com/mikem/bcm2835/")
     (supported-systems '("armhf-linux" "aarch64-linux"))
     (license license:gpl3)))
 
diff --git a/gnu/packages/rdf.scm b/gnu/packages/rdf.scm
index 03aecd1ee5..13e62baa84 100644
--- a/gnu/packages/rdf.scm
+++ b/gnu/packages/rdf.scm
@@ -117,7 +117,7 @@ HTML and JSON.")
                      ; SimpleTest fails.
                      ; Notice that the library appears to be unmaintained
                      ; with no reaction to bug reports.
-    (home-page "http://clucene.sourceforge.net/")
+    (home-page "https://clucene.sourceforge.net/")
     (synopsis "C text indexing and searching library")
     (description "CLucene is a high-performance, scalable, cross platform,
 full-featured indexing and searching API.  It is a port of the very popular
@@ -238,7 +238,7 @@ taxonomic inference capability.")
        ; test failure reported upstream, see
        ; http://bugs.librdf.org/mantis/view.php?id=571
        #:tests? #f))
-    (home-page "http://librdf.org/rasqal/")
+    (home-page "https://librdf.org/rasqal/")
     (synopsis "RDF query library")
     (description "Rasqal is a C library that handles Resource Description
 Framework (RDF) query language syntaxes, query construction and execution
@@ -269,7 +269,7 @@ Turtle/N3 and read them in SPARQL XML, RDF/XML and Turtle/N3.")
      (list rasqal)) ; in Requires.private field of .pc
     (inputs
      (list bdb))
-    (home-page "http://librdf.org/")
+    (home-page "https://librdf.org/")
     (synopsis "RDF library")
     (description "The Redland RDF Library (librdf) provides the RDF API
 and triple stores.")
diff --git a/gnu/packages/regex.scm b/gnu/packages/regex.scm
index 7cdee5afd4..639244f37d 100644
--- a/gnu/packages/regex.scm
+++ b/gnu/packages/regex.scm
@@ -87,5 +87,5 @@ Python.  It is a C++ library.")
     (description "Superset of the POSIX regex API, enabling approximate
 matching.  Also ships a version of the agrep utility which behaves similar to
 grep but features inexact matching.")
-    (home-page "http://laurikari.net/tre")
+    (home-page "https://laurikari.net/tre")
     (license license:bsd-2)))
diff --git a/gnu/packages/rsync.scm b/gnu/packages/rsync.scm
index ea645c6564..48f6139f1f 100644
--- a/gnu/packages/rsync.scm
+++ b/gnu/packages/rsync.scm
@@ -92,7 +92,7 @@ files in the destination.")
     (list popt))
    (native-inputs
     (list which perl))
-   (home-page "http://librsync.sourceforge.net/")
+   (home-page "https://librsync.sourceforge.net/")
    (synopsis "Implementation of the rsync remote-delta algorithm")
    (description
     "Librsync is a free software library that implements the rsync
diff --git a/gnu/packages/ruby.scm b/gnu/packages/ruby.scm
index 4750049227..2e8d4038de 100644
--- a/gnu/packages/ruby.scm
+++ b/gnu/packages/ruby.scm
@@ -3669,7 +3669,7 @@ use GNU gettext tools for maintenance.")
     (synopsis "Utility library to package internationalized libraries")
     (description
      "Packnga is a library to translate to many languages using YARD.")
-    (home-page "http://ranguba.org/packnga/")
+    (home-page "https://ranguba.org/packnga/")
     (license license:lgpl2.0+)))
 
 (define-public ruby-test-construct
@@ -5081,7 +5081,7 @@ to reproduce user environments.")
     (synopsis "HTML, XML, SAX, and Reader parser for Ruby")
     (description "Nokogiri (鋸) parses and searches XML/HTML, and features
 both CSS3 selector and XPath 1.0 support.")
-    (home-page "http://www.nokogiri.org/")
+    (home-page "https://www.nokogiri.org/")
     (license license:expat)))
 
 (define-public ruby-method-source
@@ -6438,7 +6438,7 @@ lock with a counter.")
     (description
      "Oj is a JSON parser and generator for Ruby, where the encoding and
 decoding of JSON is implemented as a C extension to Ruby.")
-    (home-page "http://www.ohler.com/oj/")
+    (home-page "https://www.ohler.com/oj/")
     (license (list license:expat     ; Ruby code
                    license:bsd-3)))) ; extension code
 
@@ -6462,7 +6462,7 @@ decoding of JSON is implemented as a C extension to Ruby.")
 written as a native C extension.  It was designed to be an alternative to
 Nokogiri and other Ruby XML parsers for generic XML parsing and as an
 alternative to Marshal for Object serialization.")
-    (home-page "http://www.ohler.com/ox")
+    (home-page "https://www.ohler.com/ox")
     (license license:expat)))
 
 (define-public ruby-redcloth
@@ -11669,7 +11669,7 @@ entities.")
     (description
      "Sinatra is a DSL for quickly creating web applications in Ruby with
 minimal effort.")
-    (home-page "http://sinatrarb.com/")
+    (home-page "https://sinatrarb.com/")
     (license license:expat)))
 
 (define-public ruby-thin
@@ -12525,7 +12525,7 @@ reference object.  This object is not created until the first method dispatch.")
        (sha256
         (base32 "197wrgqrddgm1xs3yvjvd8vkvil4h4mdrcp16jmd4b57rxrrr769"))))
     (build-system ruby-build-system)
-    (home-page "http://mjackson.github.io/citrus/")
+    (home-page "https://mjackson.github.io/citrus/")
     (synopsis "Parsing Expressions for Ruby")
     (description "Citrus is a parsing library for Ruby that combines the
 expressiveness of the language with the parsing expressions.")
@@ -12549,7 +12549,7 @@ expressiveness of the language with the parsing expressions.")
       ruby-rspec
       ruby-rake-compiler
       ruby-yard))
-    (home-page "http://cbor.io/")
+    (home-page "https://cbor.io/")
     (synopsis "Concise Binary Object Representation")
     (description "CBOR is a library for the
 @acronym{CBOR, Concise Binary Object Representation} format, based on
@@ -12739,7 +12739,7 @@ using published rates from open-exchange-rates.  Compatible with the money gem."
      ;; No rakefile
      `(#:tests? #f))
     (propagated-inputs (list ruby-rack))
-    (home-page "http://roda.jeremyevans.net")
+    (home-page "https://roda.jeremyevans.net")
     (synopsis "Routing Tree Web Toolkit")
     (description "Roda is a routing tree web toolkit, designed for building fast
 and maintainable web applications in ruby.")
diff --git a/gnu/packages/scheme.scm b/gnu/packages/scheme.scm
index c13de9d65b..d2f369282a 100644
--- a/gnu/packages/scheme.scm
+++ b/gnu/packages/scheme.scm
@@ -392,14 +392,14 @@ mashups, office (web agendas, mail clients, ...), etc.")
     (version "1.9.2")
     (source (origin
              (method url-fetch)
-             (uri (string-append "http://s48.org/" version
+             (uri (string-append "https://s48.org/" version
                                  "/scheme48-" version ".tgz"))
              (sha256
               (base32
                "1x4xfm3lyz2piqcw1h01vbs1iq89zq7wrsfjgh3fxnlm1slj2jcw"))
              (patches (search-patches "scheme48-tests.patch"))))
     (build-system gnu-build-system)
-    (home-page "http://s48.org/")
+    (home-page "https://s48.org/")
     (synopsis "Scheme implementation using a bytecode interpreter")
     (description
      "Scheme 48 is an implementation of Scheme based on a byte-code
@@ -701,7 +701,7 @@ linked with a SCM executable.")
                (install-file "init.scm" scm)
                #t))))
        #:tests? #f))                    ; no tests
-    (home-page "http://tinyscheme.sourceforge.net/")
+    (home-page "https://tinyscheme.sourceforge.net/")
     (synopsis "Light-weight interpreter for the Scheme programming language")
     (description
      "TinyScheme is a light-weight Scheme interpreter that implements as large a
diff --git a/gnu/packages/screen.scm b/gnu/packages/screen.scm
index 5e7708be6e..21150394db 100644
--- a/gnu/packages/screen.scm
+++ b/gnu/packages/screen.scm
@@ -93,7 +93,7 @@ view to show two terminals at once.")
                #t))))
        ;; No check target.
        #:tests? #f))
-    (home-page "http://dtach.sourceforge.net/")
+    (home-page "https://dtach.sourceforge.net/")
     (synopsis "Emulates the detach feature of screen")
     (description
      "dtach is a tiny program that emulates the detach feature of screen,
diff --git a/gnu/packages/scsi.scm b/gnu/packages/scsi.scm
index 8334f543b1..f63b391dc1 100644
--- a/gnu/packages/scsi.scm
+++ b/gnu/packages/scsi.scm
@@ -42,7 +42,7 @@
     (arguments
      `(#:configure-flags
        (list "--disable-static")))
-    (home-page "http://sg.danny.cz/sg/sg3_utils.html")
+    (home-page "https://sg.danny.cz/sg/sg3_utils.html")
     (synopsis "SCSI device utilities")
     (description
      "sg3-utils is a collection of utilities for devices that use the Small
diff --git a/gnu/packages/sdl.scm b/gnu/packages/sdl.scm
index 0c419dfaca..b37ab08642 100644
--- a/gnu/packages/sdl.scm
+++ b/gnu/packages/sdl.scm
@@ -197,7 +197,7 @@ joystick, and graphics hardware.")
 digital sound files.  It can take advantage of particular features of your
 system, such as sound redirection over the network.")
     (license license:lgpl2.1)
-    (home-page "http://mikmod.sourceforge.net/")))
+    (home-page "https://mikmod.sourceforge.net/")))
 
 (define-public sdl-gfx
   (package
@@ -377,7 +377,7 @@ SDL.")
        ("harfbuzz" ,harfbuzz)
        ("pango" ,pango)
        ("sdl" ,sdl)))
-    (home-page "http://sdlpango.sourceforge.net")
+    (home-page "https://sdlpango.sourceforge.net")
     (synopsis "Pango SDL binding")
     (description "This library is a wrapper around the Pango library.
 It allows you to use TrueType fonts to render internationalized and
diff --git a/gnu/packages/shellutils.scm b/gnu/packages/shellutils.scm
index a192bd16f7..64cc818d65 100644
--- a/gnu/packages/shellutils.scm
+++ b/gnu/packages/shellutils.scm
@@ -553,7 +553,7 @@ easily view, navigate, and search your command history with suggestion boxes.
 HSTR can also manage your command history (for instance you can remove
 commands that are obsolete or contain a piece of sensitive information) or
 bookmark your favourite commands.")
-    (home-page "http://me.mindforger.com/projects/hh.html")
+    (home-page "https://me.mindforger.com/projects/hh.html")
     (license license:asl2.0)))
 
 (define-public shell-functools
@@ -617,7 +617,7 @@ install -m 644 rig.6 $(DESTDIR)$(MANDIR)/man6/rig.6")
                          (("install -g 0 -m 644 -o 0 data/\\*.idx \\$\\(DATADIR\\)")
                           "install -m 644 data/*.idx $(DESTDIR)$(DATADIR)")))))
                  #:tests? #f))
-    (home-page "http://rig.sourceforge.net")
+    (home-page "https://rig.sourceforge.net")
     (synopsis "Random identity generator")
     (description
       "RIG (Random Identity Generator) generates random, yet real-looking,
diff --git a/gnu/packages/simulation.scm b/gnu/packages/simulation.scm
index 1ade349306..059be5a2be 100644
--- a/gnu/packages/simulation.scm
+++ b/gnu/packages/simulation.scm
@@ -1031,7 +1031,7 @@ command-line utility for mesh optimisation.")
                     (invoke "py.test" "-v" "tests/migration")
                     (invoke "py.test" "-v" "tests/pyadjoint")))
              #t)))))
-    (home-page "http://www.dolfin-adjoint.org")
+    (home-page "https://www.dolfin-adjoint.org")
     (synopsis "Automatic differentiation library")
     (description "@code{python-dolfin-adjoint} is a solver of
 differential equations associated with a governing system and a
diff --git a/gnu/packages/smalltalk.scm b/gnu/packages/smalltalk.scm
index c89e95316a..64146813d1 100644
--- a/gnu/packages/smalltalk.scm
+++ b/gnu/packages/smalltalk.scm
@@ -109,7 +109,7 @@
                  (("@LIBC_SO_NAME@") "libc.so")
                  (("@LIBC_SO_DIR@")  (string-append libc "/lib"))))
              #t)))))
-    (home-page "http://smalltalk.gnu.org/")
+    (home-page "https://smalltalk.gnu.org/")
     (synopsis "Smalltalk environment")
     (description
      "GNU Smalltalk is a free implementation of the Smalltalk language.  It
diff --git a/gnu/packages/speech.scm b/gnu/packages/speech.scm
index d217d7ba01..79d8dd5a5a 100644
--- a/gnu/packages/speech.scm
+++ b/gnu/packages/speech.scm
@@ -169,7 +169,7 @@ building tools.")
        (inputs
         (list portaudio pulseaudio))
        (native-inputs (list unzip))
-       (home-page "http://espeak.sourceforge.net/")
+       (home-page "https://espeak.sourceforge.net/")
        (synopsis "Software speech synthesizer")
        (description "eSpeak is a software speech synthesizer for English and
 other languages.  eSpeak uses a \"formant synthesis\" method.  This allows many
diff --git a/gnu/packages/stalonetray.scm b/gnu/packages/stalonetray.scm
index 57cdc5e2d8..65732313fe 100644
--- a/gnu/packages/stalonetray.scm
+++ b/gnu/packages/stalonetray.scm
@@ -39,7 +39,7 @@
          "0k7xnpdb6dvx25d67v0crlr32cdnzykdsi9j889njiididc8lm1n"))))
     (inputs (list libx11))
     (build-system gnu-build-system)
-    (home-page "http://stalonetray.sourceforge.net")
+    (home-page "https://stalonetray.sourceforge.net")
     (synopsis "Standalone freedesktop.org and KDE systray implementation")
     (description
      "Stalonetray is a stand-alone freedesktop.org and KDE system
diff --git a/gnu/packages/statistics.scm b/gnu/packages/statistics.scm
index aec646e92c..4037eec768 100644
--- a/gnu/packages/statistics.scm
+++ b/gnu/packages/statistics.scm
@@ -164,7 +164,7 @@ be output in text, PostScript, PDF or HTML.")
                (base32
                 "0aa2w4g5057vn1qjp954s2kwxfmy1h7p5yn56fyi7sz9nmaq69gr"))))
     (build-system gnu-build-system)
-    (home-page "http://mcmc-jags.sourceforge.net/")
+    (home-page "https://mcmc-jags.sourceforge.net/")
     (native-inputs
      (list gfortran lapack))
     (synopsis "Gibbs sampler")
@@ -518,7 +518,7 @@ D.V. Hinkley (1997, CUP), originally written by Angelo Canty for S.")
          "0jvqvlmb1fjqhcnix1blj7hjiyxy7m1rfjdv3sr2nhyad19rvh5m"))))
     (properties `((upstream-name . "MASS")))
     (build-system r-build-system)
-    (home-page "http://www.stats.ox.ac.uk/pub/MASS4/")
+    (home-page "https://www.stats.ox.ac.uk/pub/MASS4/")
     (synopsis "Support functions and datasets for Venables and Ripley's MASS")
     (description
      "This package provides functions and datasets for the book \"Modern
@@ -540,7 +540,7 @@ Applied Statistics with S\" (4th edition, 2002) by Venables and Ripley.")
     (build-system r-build-system)
     (propagated-inputs
      (list r-mass))
-    (home-page "http://www.stats.ox.ac.uk/pub/MASS4/")
+    (home-page "https://www.stats.ox.ac.uk/pub/MASS4/")
     (synopsis "R functions for classification")
     (description
      "This package provides various functions for classification, including
@@ -644,7 +644,7 @@ estimation) corresponding to the book: Wand, M.P. and Jones, M.C. (1995)
                (base32
                 "1b87fmyjzbg854vpi03my1p25n3d0bchhwsdm2frblxppn98sf12"))))
     (build-system r-build-system)
-    (home-page "http://lattice.r-forge.r-project.org/")
+    (home-page "https://lattice.r-forge.r-project.org/")
     (synopsis "High-level data visualization system")
     (description
      "The lattice package provides a powerful and elegant high-level data
@@ -668,7 +668,7 @@ also flexible enough to handle most nonstandard requirements.")
     (build-system r-build-system)
     (propagated-inputs
      (list r-lattice))
-    (home-page "http://Matrix.R-forge.R-project.org/")
+    (home-page "https://Matrix.R-forge.R-project.org/")
     (synopsis "Sparse and dense matrix classes and methods")
     (description
      "This package provides classes and methods for dense and sparse matrices
@@ -731,7 +731,7 @@ distributions beyond the exponential family.")
         (base32
          "1l73v6l9ma0vsg4za3c6i3d6yjj7bpdmakbmrzp7205hbkxyp6nj"))))
     (build-system r-build-system)
-    (home-page "http://www.stats.ox.ac.uk/pub/MASS4/")
+    (home-page "https://www.stats.ox.ac.uk/pub/MASS4/")
     (synopsis "Feed-forward neural networks and multinomial log-linear models")
     (description
      "This package provides functions for feed-forward neural networks with a
@@ -769,7 +769,7 @@ classification, regression and survival trees.")
         (base32
          "01p42q72mb8b4fdm75723nj64r3l0d8px1l9fyklihay9jk6arg4"))))
     (build-system r-build-system)
-    (home-page "http://www.stats.ox.ac.uk/pub/MASS4/")
+    (home-page "https://www.stats.ox.ac.uk/pub/MASS4/")
     (synopsis "Functions for kriging and point pattern analysis")
     (description
      "This package provides functions for kriging and point pattern
@@ -837,7 +837,7 @@ curves, Cox models, and parametric accelerated failure time models.")
     (build-system r-build-system)
     (native-inputs
      (list r-knitr))
-    (home-page "http://ff.r-forge.r-project.org")
+    (home-page "https://ff.r-forge.r-project.org")
     (synopsis "Class for vectors of 1-bit booleans")
     (description
      "This package provides bitmapped vectors of booleans (no @code{NA}s),
@@ -860,7 +860,7 @@ binary booleans, @code{TRUE} and @code{FALSE} can be stored with 1 bit only.")
     (build-system r-build-system)
     (propagated-inputs
      (list r-bit))
-    (home-page "http://ff.r-forge.r-project.org/")
+    (home-page "https://ff.r-forge.r-project.org/")
     (synopsis "S3 class for vectors of 64 bit integers")
     (description
      "The bit64 package provides serializable S3 atomic 64 bit (signed)
@@ -958,7 +958,7 @@ effects of different types of color-blindness.")
     (arguments
      `(#:tests? #f
        #:configure-flags (list "--no-build-vignettes")))
-    (home-page "http://dirk.eddelbuettel.com/code/digest.html")
+    (home-page "https://dirk.eddelbuettel.com/code/digest.html")
     (synopsis "Create cryptographic hash digests of R objects")
     (description
      "This package contains an implementation of a function @code{digest()} for
@@ -2006,7 +2006,7 @@ and fast file reading.")
     (build-system r-build-system)
     (native-inputs
      (list r-knitr)) ; for vignettes
-    (home-page "http://xtable.r-forge.r-project.org/")
+    (home-page "https://xtable.r-forge.r-project.org/")
     (synopsis "Export R tables to LaTeX or HTML")
     (description
      "This package provides tools to export R data as LaTeX and HTML tables.")
@@ -2111,7 +2111,7 @@ building design matrices.")
            python-matplotlib))
     (native-inputs
      (list python-cython python-nose python-sphinx))
-    (home-page "http://statsmodels.sourceforge.net/")
+    (home-page "https://statsmodels.sourceforge.net/")
     (synopsis "Statistical modeling and econometrics in Python")
     (description
      "Statsmodels is a Python package that provides a complement to scipy for
@@ -2154,7 +2154,7 @@ chain.")
     (build-system r-build-system)
     (propagated-inputs
      (list r-mass r-pixmap r-rcpp r-rcpparmadillo r-sp))
-    (home-page "http://pbil.univ-lyon1.fr/ADE-4")
+    (home-page "https://pbil.univ-lyon1.fr/ADE-4")
     (synopsis "Multivariate data analysis and graphical display")
     (description
      "The ade4 package contains data analysis functions to analyze ecological
@@ -2749,7 +2749,7 @@ scaling functions for R.")
            r-mass
            r-png
            r-rcolorbrewer))
-    (home-page "http://latticeextra.r-forge.r-project.org/")
+    (home-page "https://latticeextra.r-forge.r-project.org/")
     (synopsis "Extra graphical utilities based on lattice")
     (description
      "Building on the infrastructure provided by the lattice package, this
@@ -3025,7 +3025,7 @@ if (certs != \"\") { .opts = merge.list(.opts, list(cainfo=certs)) }
      (list curl zlib))
     (propagated-inputs
      (list r-bitops))
-    (home-page "http://www.omegahat.net/RCurl")
+    (home-page "https://www.omegahat.net/RCurl")
     (synopsis "General network client interface for R")
     (description
      "The package allows one to compose general HTTP requests and provides
@@ -3055,7 +3055,7 @@ ldap, and also supports cookies, redirects, authentication, etc.")
      (list libxml2 zlib))
     (native-inputs
      (list pkg-config))
-    (home-page "http://www.omegahat.net/RSXML")
+    (home-page "https://www.omegahat.net/RSXML")
     (synopsis "Tools for parsing and generating XML within R")
     (description
      "Many approaches for both reading and creating XML (and HTML)
@@ -4143,7 +4143,7 @@ vignettes.")
     (build-system r-build-system)
     (native-inputs
      (list gfortran))
-    (home-page "http://mvtnorm.R-forge.R-project.org")
+    (home-page "https://mvtnorm.R-forge.R-project.org")
     (synopsis "Package for multivariate normal and t-distributions")
     (description "This package can compute multivariate normal and
 t-probabilities, quantiles, random deviates and densities.")
@@ -5395,7 +5395,7 @@ can be efficiently implemented directly in the R language.")
      (list gfortran))
     (propagated-inputs
      (list r-deoptimr))
-    (home-page "http://robustbase.r-forge.r-project.org/")
+    (home-page "https://robustbase.r-forge.r-project.org/")
     (synopsis "Basic robust statistics")
     (description
      "This package analyzes data with robust methods such as
@@ -5612,7 +5612,7 @@ showing the progress is useful e.g. bootstrap.")
      (list r-rcpp))
     (inputs
      (list gfortran))
-    (home-page "http://optimizer.r-forge.r-project.org")
+    (home-page "https://optimizer.r-forge.r-project.org")
     (synopsis "Derivative-free optimization algorithms by quadratic approximation")
     (description
       "This package provides a derivative-free optimization by quadratic approximation
@@ -6112,7 +6112,7 @@ easy and fun.")
         (base32
          "1pf554vb902vavgqc4c0kgghywbgcvr3lkkr414bxngavcd60lil"))))
     (build-system r-build-system)
-    (home-page "http://strimmerlab.org/software/fdrtool/")
+    (home-page "https://strimmerlab.org/software/fdrtool/")
     (synopsis "Estimation of false discovery rates and higher criticism")
     (description
      "This package provides tools to estimate tail area-based false discovery
@@ -6480,7 +6480,7 @@ functions.")
      (list java-jtransforms))
     (native-inputs
      (list java-junit))
-    (home-page "http://jdistlib.sourceforge.net/")
+    (home-page "https://jdistlib.sourceforge.net/")
     (synopsis "Java library of statistical distributions")
     (description "JDistlib is the Java Statistical Distribution Library, a
 Java package that provides routines for various statistical distributions.")
@@ -7182,7 +7182,7 @@ highlighted in all linked plots.  Interactions with the plots are controlled
 by the mouse, menus and dialog boxes.  An object-oriented programming system
 is used to allow menus, dialogs, and the response to mouse actions to be
  customized.")
-      (home-page "http://homepage.divms.uiowa.edu/~luke/xls/xlsinfo/")
+      (home-page "https://homepage.divms.uiowa.edu/~luke/xls/xlsinfo/")
       (license license:expat))))
 
 (define-public r-rlrsim
diff --git a/gnu/packages/swig.scm b/gnu/packages/swig.scm
index 1f4bd0922a..b5195e2cc5 100644
--- a/gnu/packages/swig.scm
+++ b/gnu/packages/swig.scm
@@ -52,7 +52,7 @@
                          perl))
                      ;;("python" ,python-wrapper)
     (inputs (list pcre))
-    (home-page "http://swig.org/")
+    (home-page "https://swig.org/")
     (synopsis
      "Interface compiler that connects C/C++ code to higher-level languages")
     (description
diff --git a/gnu/packages/task-management.scm b/gnu/packages/task-management.scm
index 29515c6eb9..e4dd488cb6 100644
--- a/gnu/packages/task-management.scm
+++ b/gnu/packages/task-management.scm
@@ -422,7 +422,7 @@ export, password protection and auto-saving.")
              (substitute* "Makefile"
                (("/man1") "/share/man/man1")))))
        #:tests? #f))  ; No "check" target.
-    (home-page "http://wtime.sourceforge.net")
+    (home-page "https://wtime.sourceforge.net")
     (synopsis
      "Command-line utility for tracking time spent on arbitrary tasks")
     (description
diff --git a/gnu/packages/tcl.scm b/gnu/packages/tcl.scm
index ab86ddee2f..f071b13146 100644
--- a/gnu/packages/tcl.scm
+++ b/gnu/packages/tcl.scm
@@ -134,7 +134,7 @@
      (list tcl))
     (inputs
      (list tcllib))
-    (home-page "http://incrtcl.sourceforge.net/")
+    (home-page "https://incrtcl.sourceforge.net/")
     (synopsis "Object Oriented programming (OOP) extension for Tcl")
     (description
      "[incr Tcl] is a widely used object-oriented system for Tcl.  The name is
@@ -392,7 +392,7 @@ modules for Tk, all written in high-level Tcl.  Examples of provided widgets:
                             (assoc-ref %build-inputs "libxslt")
                             "/bin/xslt-config"))
        #:test-target "test"))
-    (home-page "http://tclxml.sourceforge.net/")
+    (home-page "https://tclxml.sourceforge.net/")
     (synopsis "Tcl library for XML parsing")
     (description "TclXML provides event-based parsing of XML documents.  The
 application may register callback scripts for certain document features, and
@@ -424,7 +424,7 @@ callback is evaluated.")
                                               "/lib"))))
     (inputs
      (list tcl tk))
-    (home-page "http://tclx.sourceforge.net/")
+    (home-page "https://tclx.sourceforge.net/")
     (synopsis "System programming extensions for Tcl")
     (description
      "Extended Tcl is oriented towards system programming tasks and large
diff --git a/gnu/packages/terminals.scm b/gnu/packages/terminals.scm
index 3877fbc4c8..51b135c99d 100644
--- a/gnu/packages/terminals.scm
+++ b/gnu/packages/terminals.scm
@@ -425,7 +425,7 @@ multi-seat support, a replacement for @command{mingetty}, and more.")
     (description
      "Libtermkey handles all the necessary logic to recognise special keys, UTF-8
 combining, and so on, with a simple interface.")
-    (home-page "http://www.leonerd.org.uk/code/libtermkey")
+    (home-page "https://www.leonerd.org.uk/code/libtermkey")
     (license license:expat)))
 
 (define-public mlterm
@@ -457,7 +457,7 @@ combining, and so on, with a simple interface.")
            libx11
            libxext
            libxft))
-    (home-page "http://mlterm.sourceforge.net/")
+    (home-page "https://mlterm.sourceforge.net/")
     (synopsis "Multi-Lingual TERMinal emulator")
     (description
      "mlterm is a multi-lingual terminal emulator.  It supports various complex
@@ -650,7 +650,7 @@ should be thread-safe.")
     (source
      (origin
        (method url-fetch)
-       (uri (string-append "http://www.leonerd.org.uk/code/libvterm/"
+       (uri (string-append "https://www.leonerd.org.uk/code/libvterm/"
                            "libvterm-" version ".tar.gz"))
        (sha256
         (base32 "15y3y23kfpcda7n79ym3gp1abzn8mshxrad8s3gnhls82nfava15"))))
@@ -665,7 +665,7 @@ should be thread-safe.")
          (delete 'configure))))
     (native-inputs
      (list libtool perl))
-    (home-page "http://www.leonerd.org.uk/code/libvterm/")
+    (home-page "https://www.leonerd.org.uk/code/libvterm/")
     (synopsis "VT220/xterm/ECMA-48 terminal emulator library")
     (description "Libvterm is an abstract C99 library which implements a VT220
 or xterm-like terminal emulator.  It doesn't use any particular graphics
diff --git a/gnu/packages/tex.scm b/gnu/packages/tex.scm
index 08573a3aeb..d0ee03c16f 100644
--- a/gnu/packages/tex.scm
+++ b/gnu/packages/tex.scm
@@ -1215,7 +1215,7 @@ support (for use with a variety of encodings) is provided.")
               (base32
                "0yyk0dr4yms82mwy4dc03zf5igyhgcb65icdah042rk23rlpxygv")
               #:trivial? #t))
-    (home-page "http://www.gust.org.pl/projects/e-foundry/latin-modern/")
+    (home-page "https://www.gust.org.pl/projects/e-foundry/latin-modern/")
     (synopsis "Latin Modern family of fonts")
     (description "The Latin Modern fonts are derived from the famous Computer
 Modern fonts designed by Donald E. Knuth and described in Volume E of his
@@ -1236,7 +1236,7 @@ Computers & Typesetting series.")
               (base32
                "0gqdk8x3r1iz4n8j6r3pcqbwalxvkihayvmjfq4iv6hwb0pvys8z")
               #:trivial? #t))
-    (home-page "http://www.gust.org.pl/projects/e-foundry/latin-modern")
+    (home-page "https://www.gust.org.pl/projects/e-foundry/latin-modern")
     (synopsis "OpenType maths fonts for Latin Modern")
     (description "Latin Modern Math is a maths companion for the Latin Modern
 family of fonts, in OpenType format.  For use with LuaLaTeX or XeLaTeX,
@@ -4151,7 +4151,7 @@ polyglossia package rather than Babel.")
                "fonts/vf/cs/cs-a35/")
               (base32 "1ww5lrqja051fh0ygmfdyy5a6bhwq9k5zv857vwiqf5syvw5djps")
               #:trivial? #t))
-    (home-page "http://petr.olsak.net/cstex/")
+    (home-page "https://petr.olsak.net/cstex/")
     (synopsis "Czech/Slovak-tuned Computer Modern fonts")
     (description "This package provides Czech/Slovak-tuned Computer Modern
 fonts in the Metafont format; Type 1 format versions (csfonts-t1) are also
@@ -4167,7 +4167,7 @@ available.")
               (list "tex/csplain/base/")
               (base32 "0cgrwc8lgf2x2hq6bb4kqxw597card985zdd9ipn7k98mmwrxhz3")
               #:trivial? #t))
-    (home-page "http://petr.olsak.net/csplain-e.html")
+    (home-page "https://petr.olsak.net/csplain-e.html")
     (synopsis "Plain TeX multilanguage support")
     (description "CSplain is a small extension of basic Plain TeX macros from
 which the formats @code{csplain} and @code{pdfcsplain} can be generated.  It
@@ -8194,7 +8194,7 @@ values (strings, macros, or numbers) pasted together.")
        ("perl-file-which" ,perl-file-which)
        ("perl-test-more" ,perl-test-most) ; FIXME: "more" would be sufficient
        ("perl-test-differences" ,perl-test-differences)))
-    (home-page "http://biblatex-biber.sourceforge.net/")
+    (home-page "https://biblatex-biber.sourceforge.net/")
     (synopsis "Backend for the BibLaTeX citation management tool")
     (description "Biber is a BibTeX replacement for users of biblatex.  Among
 other things it comes with full Unicode support.")
@@ -8267,7 +8267,7 @@ PDF documents.")
      (list poppler-qt5 qtbase-5 qtscript zlib))
     (native-inputs
      (list pkg-config))
-    (home-page "http://www.xm1math.net/texmaker/")
+    (home-page "https://www.xm1math.net/texmaker/")
     (synopsis "LaTeX editor")
     (description "Texmaker is a program that integrates many tools needed to
 develop documents with LaTeX, in a single application.")
diff --git a/gnu/packages/text-editors.scm b/gnu/packages/text-editors.scm
index 16400481b0..e05a58c447 100644
--- a/gnu/packages/text-editors.scm
+++ b/gnu/packages/text-editors.scm
@@ -301,7 +301,7 @@ can load dynamic libraries.")
          "1pmr598xxxm9j9dl93kq4dv36zyw0q2dh6d7x07hf134y9hhlnj9"))))
     (build-system gnu-build-system)
     (inputs (list ncurses))
-    (home-page "http://joe-editor.sourceforge.net/")
+    (home-page "https://joe-editor.sourceforge.net/")
     (synopsis "Console screen editor")
     (description
      "JOE is a powerful console screen editor with a \"mode-less\" user
diff --git a/gnu/packages/textutils.scm b/gnu/packages/textutils.scm
index 151add964e..aeff4593a8 100644
--- a/gnu/packages/textutils.scm
+++ b/gnu/packages/textutils.scm
@@ -852,7 +852,7 @@ categories.")
                             (invoke "sh" "test_all.sh")))))))))
     (native-inputs (list which)) ;for tests
     (inputs (list pcre))
-    (home-page "http://drmtools.sourceforge.net/")
+    (home-page "https://drmtools.sourceforge.net/")
     (synopsis "Utilities to manipulate text and binary files")
     (description "The drm_tools package contains the following commands:
 @table @command
@@ -1082,7 +1082,7 @@ names like Euro.
 @item Handling (bullet, decimal, letter, roman) lists along with (attempt at)
 indentation.
 @end itemize\n")
-    (home-page "http://docx2txt.sourceforge.net")
+    (home-page "https://docx2txt.sourceforge.net")
     (license license:gpl3+)))
 
 (define-public html2text
diff --git a/gnu/packages/tv.scm b/gnu/packages/tv.scm
index 3927aca776..f8b7c4c696 100644
--- a/gnu/packages/tv.scm
+++ b/gnu/packages/tv.scm
@@ -68,7 +68,7 @@
            zlib))
     (native-inputs
      (list pkg-config))
-    (home-page "http://tvtime.sourceforge.net")
+    (home-page "https://tvtime.sourceforge.net")
     (synopsis "Television viewer")
     (description
      "Tvtime processes the input from your video capture card and
diff --git a/gnu/packages/unicode.scm b/gnu/packages/unicode.scm
index 857af13d71..afb9546966 100644
--- a/gnu/packages/unicode.scm
+++ b/gnu/packages/unicode.scm
@@ -65,7 +65,7 @@
                        '("LineBreakTest.txt"
                          "WordBreakTest.txt"
                          "GraphemeBreakTest.txt")))))))
-    (home-page "http://vimgadgets.sourceforge.net/libunibreak/")
+    (home-page "https://vimgadgets.sourceforge.net/libunibreak/")
     (synopsis "Unicode line breaking and word breaking algorithms")
     (description
      "Libunibreak is an implementation of the line breaking and word
diff --git a/gnu/packages/upnp.scm b/gnu/packages/upnp.scm
index ff78829e4e..df94dc8f8b 100644
--- a/gnu/packages/upnp.scm
+++ b/gnu/packages/upnp.scm
@@ -113,7 +113,7 @@ over IRC, instant messaging, network games, and most server software.")
      ;; https://lists.gnu.org/archive/html/guix-devel/2015-01/msg00312.html.
      `(#:tests? #f
        #:configure-flags '("--disable-static")))
-    (home-page "http://pupnp.sourceforge.net")
+    (home-page "https://pupnp.sourceforge.net")
     (synopsis "Portable SDK for UPnP Devices")
     (description
      "The portable SDK for UPnP Devices (libupnp) provides developers with an
diff --git a/gnu/packages/version-control.scm b/gnu/packages/version-control.scm
index 49dc96d454..9f1c5d3f33 100644
--- a/gnu/packages/version-control.scm
+++ b/gnu/packages/version-control.scm
@@ -2165,7 +2165,7 @@ patch associated with a particular revision of an RCS file.")
      '(#:tests? #f
        #:configure-flags (list "--with-external-zlib")))
     (inputs (list zlib nano))                    ; the default editor
-    (home-page "http://cvs.nongnu.org")
+    (home-page "https://cvs.nongnu.org")
     (synopsis "Historical centralized version control system")
     (description
      "CVS is a version control system, an important component of Source
diff --git a/gnu/packages/video.scm b/gnu/packages/video.scm
index fcbafdb846..f63d5494de 100644
--- a/gnu/packages/video.scm
+++ b/gnu/packages/video.scm
@@ -307,7 +307,7 @@ audio/video everything to everything converter primarily focused on producing
 AVI video files with MP3 audio, but also including a program to read all the
 video and audio streams from a DVD.")
     (home-page
-     "http://linuxfromscratch.org/blfs/view/svn/multimedia/transcode.html")
+     "https://linuxfromscratch.org/blfs/view/svn/multimedia/transcode.html")
     (license license:gpl2+)))
 
 (define-public svt-hevc
@@ -469,7 +469,7 @@ as a joint effort between the BBC and Fluendo.")
     (synopsis "Quick Time Library")
     (description "The goal of this project is to enhance the quicktime4linux
 library.")
-    (home-page "http://libquicktime.sourceforge.net/")
+    (home-page "https://libquicktime.sourceforge.net/")
     (license license:lgpl2.1+)))
 
 (define-public mjpg-streamer
@@ -538,7 +538,7 @@ receiving MJPG streams.")
     (description "Mjpeg tools is a suite of programs which support video capture,
 editing, playback, and compression to MPEG of MJPEG video.  Edit, play and
 compression software is hardware independent.")
-    (home-page "http://mjpeg.sourceforge.net/")
+    (home-page "https://mjpeg.sourceforge.net/")
     (license license:gpl2+)))
 
 (define-public libmms
@@ -766,7 +766,7 @@ stream decoding")
                               (string-append "--build=" build)
                               (string-append "--with-ncurses="
                                              ncurses))))))))
-    (home-page "http://aa-project.sourceforge.net/aalib/")
+    (home-page "https://aa-project.sourceforge.net/aalib/")
     (synopsis "ASCII-art library")
     (description
      "AA-lib is a low level gfx library which does not require graphics device.
@@ -839,7 +839,7 @@ mpv's powerful playback capabilities.")
                    ;; system fixes above.
                    (replace 'bootstrap
                      (lambda _ (invoke "sh" "bootstrap"))))))
-    (home-page "http://liba52.sourceforge.net/")
+    (home-page "https://liba52.sourceforge.net/")
     (synopsis "ATSC A/52 audio stream decoder")
     (description "liba52 is a library for decoding ATSC A/52 audio streams.
 The A/52 standard is used in a variety of applications, including digital
@@ -907,7 +907,7 @@ shared library and encoder and decoder command-line executables.")
            libice
            sdl))
     (build-system gnu-build-system)
-    (home-page "http://libmpeg2.sourceforge.net/")
+    (home-page "https://libmpeg2.sourceforge.net/")
     (synopsis "MPEG1 and MPEG2 video decoder library")
     (description
      "libmpeg2 is a library which can decode MPEG1 and MPEG2 video streams.")
@@ -1342,7 +1342,7 @@ on the Invidious instances only as a fallback method.")
                      (rename-file file
                                   (string-append static "/lib/" file)))
                    (find-files "." "\\.a$")))))))))
-    (home-page "http://x265.org/")
+    (home-page "https://x265.org/")
     (synopsis "Library for encoding h.265/HEVC video streams")
     (description "x265 is a H.265 / HEVC video encoder application library,
 designed to encode video or images into an H.265 / HEVC encoded bitstream.")
@@ -1445,7 +1445,7 @@ streams.")
     (build-system gnu-build-system)
     (native-inputs (list pkg-config))
     (inputs (list libxv))
-    (home-page "http://libdv.sourceforge.net/")
+    (home-page "https://libdv.sourceforge.net/")
     (synopsis "DV video (IEC 61834 and SMPTE 314M) codec")
     (description "The Quasar DV codec (libdv) is a software codec for DV
 video, the encoding format used by most digital camcorders, typically those
@@ -2856,7 +2856,7 @@ installed).")
     (synopsis "Generates a DVD-Video movie from a MPEG-2 stream")
     (description "@command{dvdauthor} will generate a DVD-Video movie from a
 MPEG-2 stream containing VOB packets.")
-    (home-page "http://dvdauthor.sourceforge.net")
+    (home-page "https://dvdauthor.sourceforge.net")
     (license license:gpl3+)))
 
 (define-public libdvdnav
@@ -4452,7 +4452,7 @@ programmers to access a standard API to open and decompress media files.")
            wxwidgets-gtk2))
     (native-inputs
      (list intltool desktop-file-utils pkg-config))
-    (home-page "http://www.aegisub.org/")
+    (home-page "https://www.aegisub.org/")
     (synopsis "Subtitle engine")
     (description
       "Aegisub is a tool for creating and modifying subtitles.  Aegisub makes
@@ -4527,7 +4527,7 @@ tools for styling them, including a built-in real-time video preview.")
                ;; precedence in case they have e.g. the full gst-plugins-bad.
                `("GST_PLUGIN_SYSTEM_PATH" suffix
                  (,(getenv "GST_PLUGIN_SYSTEM_PATH")))))))))
-    (home-page "http://www.pitivi.org")
+    (home-page "https://www.pitivi.org")
     (synopsis "Video editor based on GStreamer Editing Services")
     (description "Pitivi is a video editor built upon the GStreamer Editing
 Services.  It aims to be an intuitive and flexible application that can appeal
@@ -4553,7 +4553,7 @@ to newbies and professionals alike.")
      '(#:configure-flags '("LIBS=-lm")))
     (native-inputs
      (list pkg-config doxygen))
-    (home-page "http://gmerlin.sourceforge.net")
+    (home-page "https://gmerlin.sourceforge.net")
     (synopsis "Low level library for multimedia API building")
     (description
      "Gavl is short for Gmerlin Audio Video Library.  It is a low level
@@ -5173,7 +5173,7 @@ Theora videos.  Theorafile was written to be used for FNA's VideoPlayer.")
     (build-system gnu-build-system)
     (inputs
      (list libdvdcss libdvdread))
-    (home-page "http://dvdbackup.sourceforge.net")
+    (home-page "https://dvdbackup.sourceforge.net")
     (synopsis "DVD video ripper")
     (description
      "A simple command line tool to backup video from a DVD.  Decrypts the
@@ -5507,7 +5507,7 @@ wlroots-based compositors.  More specifically, those that support
            gsl
            portaudio
            alsa-lib))
-    (home-page "http://guvcview.sourceforge.net/")
+    (home-page "https://guvcview.sourceforge.net/")
     (synopsis "Control your webcam and capture videos and images")
     (description
      "GTK+ UVC Viewer (guvcview) is a graphical application to control a
@@ -5667,7 +5667,7 @@ create video contact sheets (previews) of videos.  Any video supported by
 MPlayer and FFmpeg can be used.  A note of warning: Unlike most similar tools
 VCS, by default, makes screenshots the same size as the video, see the manual
 for details on how to change this.")
-   (home-page "http://p.outlyer.net/vcs/")
+   (home-page "https://p.outlyer.net/vcs/")
    (license license:lgpl2.1+)))
 
 (define-public svtplay-dl
diff --git a/gnu/packages/virtualization.scm b/gnu/packages/virtualization.scm
index 927be39676..7aaa816308 100644
--- a/gnu/packages/virtualization.scm
+++ b/gnu/packages/virtualization.scm
@@ -2200,7 +2200,7 @@ by default and can be made read-only.")
      `(#:tests? #f))                    ; no tests exist
     (inputs
      (list libxrandr))
-    (home-page "http://bochs.sourceforge.net/")
+    (home-page "https://bochs.sourceforge.net/")
     (synopsis "Emulator for x86 PC")
     (description
      "Bochs is an emulator which can emulate Intel x86 CPU, common I/O
diff --git a/gnu/packages/w3m.scm b/gnu/packages/w3m.scm
index 3efacf7346..39d5e3c37f 100644
--- a/gnu/packages/w3m.scm
+++ b/gnu/packages/w3m.scm
@@ -77,7 +77,7 @@
      `(("gettext" ,gettext-minimal)
        ("perl" ,perl)
        ("pkg-config" ,pkg-config)))
-    (home-page "http://w3m.sourceforge.net/")
+    (home-page "https://w3m.sourceforge.net/")
     (synopsis "Text-mode web browser")
     (description
      "w3m is a text-based web browser as well as a pager like @code{more} or
diff --git a/gnu/packages/web.scm b/gnu/packages/web.scm
index e5fb7abfc1..fd0e68c591 100644
--- a/gnu/packages/web.scm
+++ b/gnu/packages/web.scm
@@ -681,7 +681,7 @@ supported at your website.")
       (source (origin
                 (method hg-fetch)
                 (uri (hg-reference
-                      (url "http://hg.nginx.org/xslscript")
+                      (url "https://hg.nginx.org/xslscript")
                       (changeset changeset)))
                 (file-name (string-append name "-" version))
                 (sha256
@@ -705,7 +705,7 @@ supported at your website.")
                              out-bin
                              "/xslscript.pl"))
                  #t))))))
-      (home-page "http://hg.nginx.org/xslscript")
+      (home-page "https://hg.nginx.org/xslscript")
       (synopsis "XSLScript with NGinx specific modifications")
       (description
        "XSLScript is a terse notation for writing complex XSLT stylesheets.
@@ -1244,7 +1244,7 @@ project)
            (lambda _ (setenv "QT_QPA_PLATFORM" "offscreen") #t)))))
     (inputs
      (list qtbase-5))
-    (home-page "http://qjson.sourceforge.net")
+    (home-page "https://qjson.sourceforge.net")
     (synopsis "Library that maps JSON data to QVariant objects")
     (description "QJson is a Qt-based library that maps JSON data to
 @code{QVariant} objects.  JSON arrays will be mapped to @code{QVariantList}
@@ -1749,7 +1749,7 @@ UTS#46.")
     (synopsis "HTML validator and tidier")
     (description "HTML Tidy is a command-line tool and C library that can be
 used to validate and fix HTML data.")
-    (home-page "http://tidy.sourceforge.net/")
+    (home-page "https://tidy.sourceforge.net/")
     (license (license:x11-style "file:///include/tidy.h"))))
 
 (define-public esbuild
@@ -1967,7 +1967,7 @@ hash/signatures.")
        (sha256
         (base32 "0d0giry6bb57pnidymvdl7i5x9bq3ljk3g4bs294hcr5mj3cq0kw"))))
     (build-system gnu-build-system)
-    (home-page "http://quvi.sourceforge.net/")
+    (home-page "https://quvi.sourceforge.net/")
     (synopsis "Media stream URL parser")
     (description "This package contains support scripts called by libquvi to
 parse media stream properties.")
@@ -2001,7 +2001,7 @@ parse media stream properties.")
          (list
           (string-append "liblua_CFLAGS=-I" lua "/include")
           (string-append "liblua_LIBS=-L" lua "/libs -llua")))))
-    (home-page "http://quvi.sourceforge.net/")
+    (home-page "https://quvi.sourceforge.net/")
     (synopsis "Media stream URL parser")
     (description "libquvi is a library with a C API for parsing media stream
 URLs and extracting their actual media files.")
@@ -2023,7 +2023,7 @@ URLs and extracting their actual media files.")
     (native-inputs (list pkg-config))
     (inputs
      (list curl libquvi))
-    (home-page "http://quvi.sourceforge.net/")
+    (home-page "https://quvi.sourceforge.net/")
     (synopsis "Media stream URL parser")
     (description "quvi is a command-line-tool suite to extract media files
 from streaming URLs.  It is a command-line wrapper for the libquvi library.")
@@ -6192,7 +6192,7 @@ used to start services with both privileged and non-privileged port numbers.")
                #t))))))
     (native-inputs
      (list libxslt))
-    (home-page "http://www.html-tidy.org/")
+    (home-page "https://www.html-tidy.org/")
     (synopsis "HTML Tidy with HTML5 support")
     (description
      "Tidy is a console application which corrects and cleans up
@@ -8094,7 +8094,7 @@ returned.")
        (sha256
         (base32 "1j3mzjlczjrk4ahc43s6kzpvzypzjmqz4sillnca5yadrwwgjf2x"))))
     (build-system gnu-build-system)
-    (home-page "http://htmlcxx.sourceforge.net/")
+    (home-page "https://htmlcxx.sourceforge.net/")
     (synopsis "Simple non-validating CSS1 and HTML parser for C++")
     (description "htmlcxx is a simple non-validating CSS1 and HTML parser for
 C++.  Although there are several other HTML parsers available, htmlcxx has some
diff --git a/gnu/packages/wm.scm b/gnu/packages/wm.scm
index 0d3e27e7cc..e8bf3f6ac9 100644
--- a/gnu/packages/wm.scm
+++ b/gnu/packages/wm.scm
@@ -1026,7 +1026,7 @@ tiling window manager for X.")
        #:tests? #f                      ;no tests
        #:phases (modify-phases %standard-phases
                   (delete 'configure)))) ;no configure script
-    (home-page "http://www.6809.org.uk/evilwm/")
+    (home-page "https://www.6809.org.uk/evilwm/")
     (synopsis "Minimalist window manager for the X Window System")
     (description
      "evilwm is a minimalist window manager based on aewm, extended to feature
@@ -1295,7 +1295,7 @@ all of them.  Currently supported window managers include:
 @item WindowMaker
 @item XFCE
 @end enumerate\n")
-    (home-page "http://menumaker.sourceforge.net/")
+    (home-page "https://menumaker.sourceforge.net/")
     (license license:bsd-2)))
 
 (define-public keybinder
diff --git a/gnu/packages/wv.scm b/gnu/packages/wv.scm
index 1fdcf0ac2b..bb773f2ed1 100644
--- a/gnu/packages/wv.scm
+++ b/gnu/packages/wv.scm
@@ -55,5 +55,5 @@ to plain text but will lack formatting.
 Other programs can use wv as a library to convert Word documents to other
 formats.  AbiWord uses it as its Word importer, and KWord uses concepts and
 code from wv in theirs.")
-    (home-page "http://wvware.sourceforge.net/")
+    (home-page "https://wvware.sourceforge.net/")
     (license license:gpl2+)))
diff --git a/gnu/packages/wxwidgets.scm b/gnu/packages/wxwidgets.scm
index c62fc20fec..5440a2725b 100644
--- a/gnu/packages/wxwidgets.scm
+++ b/gnu/packages/wxwidgets.scm
@@ -338,7 +338,7 @@ provide a 100% native look and feel for the application.")
     (synopsis "C++ library to create, manipulate and render SVG files")
     (description "wxSVG is a C++ library to create, manipulate and render
 @dfn{Scalable Vector Graphics} (SVG) files with the wxWidgets toolkit.")
-    (home-page "http://wxsvg.sourceforge.net")
+    (home-page "https://wxsvg.sourceforge.net")
 
     ;; wxSVG is licenced under the "wxWindows library licence", which is
     ;; the LGPL2.0+, with a few extra permissions.
diff --git a/gnu/packages/xdisorg.scm b/gnu/packages/xdisorg.scm
index ddb70bd817..b4f0235d3b 100644
--- a/gnu/packages/xdisorg.scm
+++ b/gnu/packages/xdisorg.scm
@@ -768,7 +768,7 @@ and Matrox.")
           "1q700h9dqcm3zl6c3gj0qxxjcx6ibw2c51wjijydhwdcm26v5mqm"))))
     (build-system gnu-build-system)
     (arguments '(#:configure-flags '("--disable-static")))
-    (home-page "http://bitmath.org/code/mtdev/")
+    (home-page "https://bitmath.org/code/mtdev/")
     (synopsis "Multitouch protocol translation library")
     (description "Mtdev is a stand-alone library which transforms all
 variants of kernel MT events to the slotted type B protocol.  The events
@@ -1782,7 +1782,7 @@ Saver extension) library.")
       (native-inputs (list autoconf automake libtool))
       (inputs
        (list libxt))
-      (home-page "http://www.vergenet.net/~conrad/software/xsel/")
+      (home-page "https://www.vergenet.net/~conrad/software/xsel/")
       (synopsis "Manipulate X selection")
       (description
        "XSel is a command-line program for getting and setting the contents of
diff --git a/gnu/packages/xfig.scm b/gnu/packages/xfig.scm
index 1d4d17527c..8efe561433 100644
--- a/gnu/packages/xfig.scm
+++ b/gnu/packages/xfig.scm
@@ -64,7 +64,7 @@
                ;; The patch-dot-desktop-files phase requires a relative name.
                (("Exec=/usr/bin/xfig") "Exec=xfig"))
              #t)))))
-    (home-page "http://mcj.sourceforge.net/")
+    (home-page "https://mcj.sourceforge.net/")
     (synopsis "Interactive drawing tool")
     (description
      "Xfig is an interactive drawing tool which runs under X Window System.
@@ -146,7 +146,7 @@ selected in various ways.  For text, 35 fonts are available.")
          (add-after 'install 'install/doc
            (lambda _
              (invoke "make" "install.man"))))))
-    (home-page "http://mcj.sourceforge.net/")
+    (home-page "https://mcj.sourceforge.net/")
     (synopsis "Create portable LaTeX figures")
     (description
      "Transfig creates a makefile to translate figures described in Fig code
diff --git a/gnu/packages/xml.scm b/gnu/packages/xml.scm
index 2565b13632..0b26a63e85 100644
--- a/gnu/packages/xml.scm
+++ b/gnu/packages/xml.scm
@@ -449,7 +449,7 @@ based on libxml for XML parsing, tree manipulation and XPath support.")
      (list opensp))
     (native-inputs
      (list perl))
-    (home-page "http://openjade.sourceforge.net/")
+    (home-page "https://openjade.sourceforge.net/")
     (synopsis "ISO/IEC 10179:1996 standard DSSSL language implementation")
     (description "OpenJade is an implementation of Document Style Semantics
 and Specification Language (DSSSL), a style language to format SGML or XML
@@ -1102,7 +1102,7 @@ parsing/saving.")
                (base32
                 "1d17pyixbfvjyi2lb0cfp0ch8wwdf44mmg3r5pwqhyyqs66z601a"))))
     (build-system python-build-system)
-    (home-page "http://pyxb.sourceforge.net/")
+    (home-page "https://pyxb.sourceforge.net/")
     (synopsis "Python XML Schema Bindings")
     (description
      "PyXB (\"pixbee\") is a pure Python package that generates Python source
@@ -1348,7 +1348,7 @@ C++ programming language.")
              #t))))))
    (inputs
     (list libxslt libxml2))
-   (home-page "http://xmlstar.sourceforge.net/")
+   (home-page "https://xmlstar.sourceforge.net/")
    (synopsis "Command line XML toolkit")
    (description "XMLStarlet is a set of command line utilities which can be
 used to transform, query, validate, and edit XML documents.  XPath is used to
@@ -1724,7 +1724,7 @@ support.")
              (substitute* "GNUmakefile"
                (("#! /bin/sh") (which "sh")))
              #t)))))
-    (home-page "http://xmlrpc-c.sourceforge.net/")
+    (home-page "https://xmlrpc-c.sourceforge.net/")
     (synopsis "Lightweight RPC library based on XML and HTTP")
     (description
      "XML-RPC is a quick-and-easy way to make procedure calls over the Internet.
@@ -1809,7 +1809,7 @@ modular implementation of XML-RPC for C and C++.")
                                 (files '("sgml"))
                                 (file-pattern "^catalog$|^CATALOG$|^.*\\.cat$")
                                 (file-type 'regular))))
-    (home-page "http://openjade.sourceforge.net/")
+    (home-page "https://openjade.sourceforge.net/")
     (synopsis "Suite of SGML/XML processing tools")
     (description "OpenSP is an object-oriented toolkit for SGML parsing and
 entity management.  It is a fork of James Clark's SP suite.  The tools it
diff --git a/gnu/packages/xorg.scm b/gnu/packages/xorg.scm
index a43809e3cb..0d3c8362bc 100644
--- a/gnu/packages/xorg.scm
+++ b/gnu/packages/xorg.scm
@@ -3128,7 +3128,7 @@ UniChrome Pro and Chrome9 integrated graphics processors.")
     (synopsis "Qxl video driver for X server")
     (description "xf86-video-qxl is a video driver for the Xorg X server.
 This driver is intended for the spice qxl virtio device.")
-    (home-page "http://www.spice-space.org")
+    (home-page "https://www.spice-space.org")
     (license license:x11)))
 
 (define-public xf86-video-r128