diff --git a/pkgs/development/libraries/giflib/libungif.nix b/pkgs/development/libraries/giflib/libungif.nix
index f3302f8f3337..ca2d09457225 100644
--- a/pkgs/development/libraries/giflib/libungif.nix
+++ b/pkgs/development/libraries/giflib/libungif.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation {
   name = "libungif-4.1.4";
   src = fetchurl {
     url = mirror://sourceforge/giflib/libungif-4.1.4.tar.gz;
-    md5 = "efdfcf8e32e35740288a8c5625a70ccb";
+    sha256 = "5e65e1e5deacd0cde489900dbf54c6c2ee2ebc818199e720dbad685d87abda3d";
   };
 }