diff --git a/monadIO.cabal b/monadIO.cabal
--- a/monadIO.cabal
+++ b/monadIO.cabal
@@ -1,5 +1,5 @@
 name:               monadIO
-version:            0.9.1.0
+version:            0.9.2.0
 synopsis:           Overloading of concurrency variables
 description:        MonadIO provides for many IO operations to be
                     overloaded over other IO-like monads.
@@ -15,7 +15,7 @@
 
 Library
   Build-Depends:    base >= 4.2.0.0 && <= 4.3,
-                    stm  >= 2.1.2.0 && <= 2.2,
+                    stm  >= 2.1.0.0 && <= 2.2,
                     mtl  >= 1.1.0.0 && <= 1.2
   Exposed-modules:  Control.Concurrent.MonadIO
                     Control.Concurrent.STM.MonadIO