diff --git a/bytestring.cabal b/bytestring.cabal
--- a/bytestring.cabal
+++ b/bytestring.cabal
@@ -1,5 +1,5 @@
 Name:                bytestring
-Version:             0.9.1.1
+Version:             0.9.1.2
 Synopsis:            Fast, packed, strict and lazy byte arrays with a list interface
 Description:
     .
@@ -30,7 +30,7 @@
 
 library
   build-depends:     base
-  if impl(ghc > 6.8.2)
+  if impl(ghc >= 6.9)
        build-depends: ghc-prim
 
   exposed-modules:   Data.ByteString