diff --git a/pkgs/tools/misc/mcrypt/default.nix b/pkgs/tools/misc/mcrypt/default.nix
index 03225710c510..b2237ce04839 100644
--- a/pkgs/tools/misc/mcrypt/default.nix
+++ b/pkgs/tools/misc/mcrypt/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
       ever-wider range of algorithms and modes.
     '';
     homepage = "http://mcrypt.sourceforge.net";
-    license = stdenv.lib.licenses.gpl2;
+    license = stdenv.lib.licenses.gpl3Only;
     platforms = stdenv.lib.platforms.all;
     maintainers = [ stdenv.lib.maintainers.qknight ];
   };