diff --git a/gap-loops.spec b/gap-loops.spec
index 41a5412..4ec7a1c 100644
--- a/gap-loops.spec
+++ b/gap-loops.spec
@@ -24,7 +24,7 @@ License:        GPL-3.0
 Group:          Productivity/Scientific/Math
 Url:            http://www.math.du.edu/loops
 
-Source:         ftp://ftp.gap-system.org/pub/gap/gap4/tar.bz2/packages/loops-%version.tar.bz2
+Source:         https://www.gap-system.org/pub/gap/gap4/tar.bz2/packages/loops-%version.tar.bz2
 BuildRequires:  fdupes
 BuildRequires:  gap-rpm-devel
 BuildRequires:  xz