diff --git a/keyvaluehash.cabal b/keyvaluehash.cabal
--- a/keyvaluehash.cabal
+++ b/keyvaluehash.cabal
@@ -1,5 +1,5 @@
 name:                keyvaluehash
-version:             0.3.0.0
+version:             0.3.0.1
 synopsis:            Pure Haskell key/value store implementation
 -- description:         
 license:             BSD3
@@ -15,7 +15,7 @@
   hs-Source-Dirs:      src
   exposed-modules:     Database.KeyValueHash
   other-modules:       Database.GrowingFile, Database.FileArray
-  build-depends:       base >=4.5 && <10, filepath, directory, bytestring, hashable,
+  build-depends:       base >= 3 && <10, filepath, directory, bytestring, hashable,
                        binary, derive, mmap, array, storable-record
   ghc-options:         -O2 -Wall
   ghc-prof-options:    -Wall -auto-all -caf-all -rtsopts