diff --git a/pkgs/applications/networking/instant-messengers/pidgin-plugins/otr/default.nix b/pkgs/applications/networking/instant-messengers/pidgin-plugins/otr/default.nix
index c290975152cd..7b80ec85661a 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin-plugins/otr/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin-plugins/otr/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ libotr pidgin intltool ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.cypherpunks.ca/otr;
+    homepage = https://otr.cypherpunks.ca/;
     description = "Plugin for Pidgin 2.x which implements OTR Messaging";
     license = licenses.gpl2;
     platforms = platforms.linux;