diff --git a/wx.cabal b/wx.cabal
--- a/wx.cabal
+++ b/wx.cabal
@@ -1,5 +1,5 @@
 Name:           wx
-Version:        0.11.1.2
+Version:        0.12.1.1
 License:        LGPL
 License-file:   license.txt
 Homepage:       http://haskell.org/haskellwiki/WxHaskell
@@ -17,9 +17,13 @@
 
 Library
     if flag(splitBase)
-        build-depends: base >= 3, wxcore >= 0.10.4, stm
+        build-depends: base >= 3 && < 5, 
+                       wxcore >= 0.12.1.1,
+                       stm
     else
-        build-depends: base <  3, wxcore >= 0.10.4, stm
+        build-depends: base <  3, 
+                       wxcore >= 0.12.1.1, 
+                       stm
 
  Exposed-Modules:
   Graphics.UI.WX.Draw