diff --git a/pkgs/development/libraries/libffi/default.nix b/pkgs/development/libraries/libffi/default.nix
index 215f587bb6b..384e3370ec9 100644
--- a/pkgs/development/libraries/libffi/default.nix
+++ b/pkgs/development/libraries/libffi/default.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation rec {
   name = "libffi-3.2.1";
 
   src = fetchurl {
-    url = "ftp://sourceware.org/pub/libffi/${name}.tar.gz";
+    url = "https://sourceware.org/pub/libffi/${name}.tar.gz";
     sha256 = "0dya49bnhianl0r65m65xndz6ls2jn1xngyn72gd28ls3n7bnvnh";
   };