diff --git a/monad-stm.cabal b/monad-stm.cabal
--- a/monad-stm.cabal
+++ b/monad-stm.cabal
@@ -10,7 +10,7 @@
 -- PVP summary:      +-+------- breaking API changes
 --                   | | +----- non-breaking API additions
 --                   | | | +--- code changes with no API change
-version:             0.1.0.0
+version:             0.1.0.1
 
 -- A short (one-line) description of the package.
 synopsis:            MonadSTM class analogous to MonadIO
@@ -50,5 +50,5 @@
   -- other-modules:       
   
   -- Other library packages from which modules are imported.
-  build-depends:       base <= 10, stm, transformers >= 0.2
+  build-depends:       base <= 4, stm, transformers >= 0.2