diff --git a/data-ref.cabal b/data-ref.cabal
--- a/data-ref.cabal
+++ b/data-ref.cabal
@@ -1,5 +1,5 @@
 Name:             data-ref
-Version:          0.0.1
+Version:          0.0.1.1
 License:          BSD3
 License-File:     LICENSE
 Author:           Henning Thielemann <haskell@henning-thielemann.de>
@@ -17,7 +17,7 @@
   and we do not pass the references around but their accessors.
   .
   Similar packages: @reference@, @ref-mtl@, @ref-fd@, @ref-tf@.
-Tested-With:       GHC==7.4.2
+Tested-With:       GHC==7.4.2, GHC==8.0.1
 Cabal-Version:     >=1.6
 Build-Type:        Simple
 Source-Repository head
@@ -27,11 +27,11 @@
 Source-Repository this
   type:     darcs
   location: http://hub.darcs.net/thielema/data-ref/
-  tag:      0.0.1
+  tag:      0.0.1.1
 
 Library
   Build-Depends:
-    transformers >=0.4 && <0.5,
+    transformers >=0.4 && <0.6,
     stm >=2.2 && <2.5,
     base >=2 && <5