diff --git a/testpack.cabal b/testpack.cabal
--- a/testpack.cabal
+++ b/testpack.cabal
@@ -1,5 +1,5 @@
 Name: testpack
-Version: 2.1.2
+Version: 2.1.2.1
 License: LGPL
 Maintainer: John Goerzen <jgoerzen@complete.org>
 Author: John Goerzen
@@ -38,8 +38,8 @@
     build-depends: base >= 4 && <5
 
  Build-Depends: base >= 3 && < 5,
-               mtl, HUnit, 
-               QuickCheck >= 2.1.0.3
+               mtl, HUnit,
+               QuickCheck >= 2.1.0.3 && < 2.5
 
  If flag(splitBase)
    Build-Depends: base >= 3 && < 5, containers, random