diff --git a/gap-ace.spec b/gap-ace.spec
index 676325d..929afec 100644
--- a/gap-ace.spec
+++ b/gap-ace.spec
@@ -25,7 +25,7 @@ Group:          Productivity/Scientific/Math
 Url:            http://www.math.rwth-aachen.de/~Greg.Gamble/ACE/
 
 #Git-Clone:	https://github.com/gap-packages/ace
-Source:         ftp://ftp.gap-system.org/pub/gap/gap4/tar.bz2/packages/ace-%version.tar.bz2
+Source:         https://www.gap-system.org/pub/gap/gap4/tar.bz2/packages/ace-%version.tar.bz2
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 BuildRequires:  gap-devel
 BuildRequires:  gap-rpm-devel