diff --git a/QuickCheck.cabal b/QuickCheck.cabal
index b08e03a..f84a32f 100644
--- a/QuickCheck.cabal
+++ b/QuickCheck.cabal
@@ -33,7 +33,7 @@ library
           Test.QuickCheck.Utils,
           Test.QuickCheck
   if flag(split-base)
-    build-depends:	base >= 3, random
+    build-depends:	base >= 3 && < 4, random
   else
     build-depends:	base < 3
   extensions:	CPP