diff --git a/pam_kwallet.spec b/pam_kwallet.spec
index 17bac29..be2e43b 100644
--- a/pam_kwallet.spec
+++ b/pam_kwallet.spec
@@ -27,7 +27,7 @@ Group:          System/GUI/KDE
 Url:            http://www.kde.org/
 Source:         https://download.kde.org/stable/plasma/%{version}/kwallet-pam-%{version}.tar.xz
 %if %{with lang}
-Source1:        http://download.kde.org/stable/plasma/%{version}/kwallet-pam-%{version}.tar.xz.sig
+Source1:        https://download.kde.org/stable/plasma/%{version}/kwallet-pam-%{version}.tar.xz.sig
 Source2:        plasma.keyring
 %endif
 Source3:        baselibs.conf