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:         0.1.3
+version:         0.1.3.1
 license:         BSD3
 license-file:    LICENSE
 author:          Michael Snoyman <michael@snoyman.com>
@@ -24,7 +24,7 @@
                    , blaze-builder-enumerator  >= 0.2      && < 0.3
                    , HUnit                     >= 1.2      && < 1.3
                    , http-types                >= 0.6      && < 0.7
-                   , case-insensitive          >= 0.2      && < 0.4
+                   , case-insensitive          >= 0.2
     exposed-modules: Network.Wai.Test
     ghc-options:     -Wall