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-rw-r--r--gnu/packages/maths.scm3
1 files changed, 2 insertions, 1 deletions
diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index 9869fa9283..83a04f7301 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -5971,7 +5971,8 @@ theories} (SMT) solver.  It provides a C/C++ API, as well as Python bindings.")
     (version "2018.11.001")
     (source (origin
               (method url-fetch)
-              (uri (string-append "http://elpa.mpcdf.mpg.de/html/Releases/"
+              (uri (string-append "https://elpa.mpcdf.mpg.de/software/"
+                                  "tarball-archive/Releases/"
                                   version "/elpa-" version ".tar.gz"))
               (sha256
                (base32