diff --git a/lazyio.cabal b/lazyio.cabal
--- a/lazyio.cabal
+++ b/lazyio.cabal
@@ -1,5 +1,5 @@
 Name:             lazyio
-Version:          0.1
+Version:          0.1.0.1
 License:          BSD3
 License-File:     LICENSE
 Author:           Henning Thielemann <haskell@henning-thielemann.de>
@@ -27,7 +27,7 @@
 Source-Repository this
   type:     darcs
   location: http://code.haskell.org/~thielema/lazyio/
-  tag:      0.1
+  tag:      0.1.0.1
 
 Flag splitBase
   description: Choose the new smaller, split-up base package.
@@ -39,7 +39,7 @@
 Library
   Build-Depends:
     unsafe >=0.0 && <0.1,
-    transformers >=0.2 && <0.4
+    transformers >=0.2 && <0.5
   If flag(splitBase)
     Build-Depends: base >=2 && <5
   Else