diff --git a/monadIO.cabal b/monadIO.cabal
--- a/monadIO.cabal
+++ b/monadIO.cabal
@@ -1,5 +1,5 @@
 name:               monadIO
-version:            0.10.1.1
+version:            0.10.1.2
 synopsis:           Overloading of concurrency variables
 description:        MonadIO provides for many IO operations to be
                     overloaded over other IO-like monads.
@@ -14,9 +14,9 @@
 
 
 Library
-  Build-Depends:    base >= 4.2.0.0 && <= 5.0,
-                    stm  >= 2.2.0.0 && <= 2.3,
-                    mtl  >= 2.0.1.0 && <= 2.1
+  Build-Depends:    base >= 4.2.0.0 && < 5.0,
+                    stm  >= 2.2.0.0 && < 2.3,
+                    mtl  >= 2.0.1.0 && < 2.2
   Exposed-modules:  Control.Concurrent.MonadIO
                     Control.Concurrent.STM.MonadIO
                     Control.Concurrent.StdInOut