diff --git a/servant-mock.cabal b/servant-mock.cabal
--- a/servant-mock.cabal
+++ b/servant-mock.cabal
@@ -1,5 +1,5 @@
 name:                servant-mock
-version:             0.4.4.5
+version:             0.4.4.6
 synopsis:            Derive a mock server for free from your servant API types
 description:
   Derive a mock server for free from your servant API types
@@ -31,7 +31,7 @@
     servant-server >= 0.4,
     transformers >= 0.3 && <0.5,
     QuickCheck >= 2.8 && <2.9,
-    wai >= 3.0 && <3.1
+    wai >= 3.0 && <3.3
   hs-source-dirs:      src
   default-language:    Haskell2010