1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/applications/networking/mailreaders/sylpheed/default.nix b/pkgs/applications/networking/mailreaders/sylpheed/default.nix
index 22bfddc5b570..70f74dff3097 100644
--- a/pkgs/applications/networking/mailreaders/sylpheed/default.nix
+++ b/pkgs/applications/networking/mailreaders/sylpheed/default.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation rec {
   version = "3.7.0";
 
   src = fetchurl {
-    url = "http://sylpheed.sraoss.jp/sylpheed/v3.7/${name}.tar.xz";
+    url = "https://sylpheed.sraoss.jp/sylpheed/v3.7/${name}.tar.xz";
     sha256 = "0j9y5vdzch251s264diw9clrn88dn20bqqkwfmis9l7m8vmwasqd";
   };