diff --git a/pkgs/by-name/rr/rrootage/package.nix b/pkgs/by-name/rr/rrootage/package.nix
index a3962c06b48c..8fb7d1b4e241 100644
--- a/pkgs/by-name/rr/rrootage/package.nix
+++ b/pkgs/by-name/rr/rrootage/package.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation {
   pname = "rrootage";
   inherit version;
   src = fetchurl {
-    url = "http://downloads.sourceforge.net/rrootage/rRootage-${version}.tar.gz";
+    url = "https://downloads.sourceforge.net/rrootage/rRootage-${version}.tar.gz";
     sha256 = "01zzg4ih3kmbhsn1p9zr7g8srv1d2dhrp8cdd86y9qq233idnkln";
   };