diff --git a/gnome-software.spec b/gnome-software.spec
index 22ba564..714d32a 100644
--- a/gnome-software.spec
+++ b/gnome-software.spec
@@ -19,7 +19,7 @@ Summary:   A software center for GNOME
 
 License:   GPLv2+
 URL:       https://wiki.gnome.org/Apps/Software
-Source0:   http://download.gnome.org/sources/gnome-software/3.21/%{name}-%{version}.tar.xz
+Source0:   https://download.gnome.org/sources/gnome-software/3.21/%{name}-%{version}.tar.xz
 
 BuildRequires: gettext
 BuildRequires: intltool