diff --git a/pkgs/development/tools/misc/gnum4/default.nix b/pkgs/development/tools/misc/gnum4/default.nix
index 90adb1a9f2a..a043d1eb3a9 100644
--- a/pkgs/development/tools/misc/gnum4/default.nix
+++ b/pkgs/development/tools/misc/gnum4/default.nix
@@ -1,8 +1,8 @@
 {stdenv, fetchurl}:
 stdenv.mkDerivation {
-  name = "gnum4-1.4.7";
+  name = "gnum4-1.4.8";
   src = fetchurl {
-    url = http://nix.cs.uu.nl/dist/tarballs/m4-1.4.7.tar.bz2;
-    md5 = "0115a354217e36ca396ad258f6749f51";
+    url = ftp://ftp.nluug.nl/pub/gnu/m4/m4-1.4.8.tar.bz2;
+    md5 = "6bbf917e5d8fab20b38d43868c3944d3";
   };
 }