diff --git a/wai-test.cabal b/wai-test.cabal
--- a/wai-test.cabal
+++ b/wai-test.cabal
@@ -1,5 +1,5 @@
 name:            wai-test
-version:         2.0.1.2
+version:         2.0.1.3
 license:         MIT
 license-file:    LICENSE
 author:          Michael Snoyman <michael@snoyman.com>
@@ -18,7 +18,7 @@
                    , bytestring                >= 0.9.1.4
                    , text                      >= 0.7
                    , blaze-builder             >= 0.2.1.4  && < 0.4
-                   , transformers              >= 0.2.2    && < 0.4
+                   , transformers              >= 0.2.2
                    , containers                >= 0.2
                    , conduit                   >= 0.5      && < 1.2
                    , conduit-extra