diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index 7866bcc6eb..4f8f79052d 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -12,7 +12,7 @@
 ;;; Copyright © 2015 Fabian Harfert <fhmgufs@web.de>
 ;;; Copyright © 2016 Roel Janssen <roel@gnu.org>
 ;;; Copyright © 2016, 2018, 2020 Kei Kebreau <kkebreau@posteo.net>
-;;; Copyright © 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2016 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2016, 2017 Thomas Danckaert <post@thomasdanckaert.be>
 ;;; Copyright © 2017, 2018, 2019, 2020 Paul Garlick <pgarlick@tourbillion-technology.com>
@@ -3083,13 +3083,15 @@ implemented in ANSI C, and MPI for communications.")
   (package
     (name "scotch")
     (version "6.1.0")
-    (source
-     (origin
-      (method url-fetch)
-      (uri (string-append "https://gforge.inria.fr/frs/download.php/"
-                          "latestfile/298/scotch_" version ".tar.gz"))
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://gitlab.inria.fr/scotch/scotch")
+                    (commit (string-append "v" version))))
+              (file-name (git-file-name name version))
               (sha256
-       (base32 "1184fcv4wa2df8szb5lan6pjh0raarr45pk8ilpvbz23naikzg53"))
+               (base32
+                "164jqsy75j7zfnwngj10jc4060shhxni3z8ykklhqjykdrinir55"))
               (patches (search-patches "scotch-build-parallelism.patch"
                                        "scotch-integer-declarations.patch"))))
     (build-system gnu-build-system)