diff --git a/gap-hap.spec b/gap-hap.spec
index 1e4147d..1c150cf 100644
--- a/gap-hap.spec
+++ b/gap-hap.spec
@@ -24,7 +24,7 @@ License:        GPL-2.0+
 Group:          Productivity/Scientific/Math
 Url:            http://hamilton.nuigalway.ie/Hap/www/
 
-Source:         ftp://ftp.gap-system.org/pub/gap/gap4/tar.bz2/packages/hap1.11.tar.bz2
+Source:         https://www.gap-system.org/pub/gap/gap4/tar.bz2/packages/hap1.11.tar.bz2
 BuildArch:      noarch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 BuildRequires:  fdupes