diff --git a/engine-io-yesod.cabal b/engine-io-yesod.cabal
--- a/engine-io-yesod.cabal
+++ b/engine-io-yesod.cabal
@@ -1,5 +1,5 @@
 name: engine-io-yesod
-version: 1.0.3
+version: 1.0.4
 license: BSD3
 license-file: LICENSE
 author: Tim Baumann
@@ -22,7 +22,7 @@
     engine-io >= 1.2 && < 1.3,
     http-types >= 0.8 && < 0.10,
     unordered-containers >= 0.2 && < 0.3,
-    wai >= 3.0 && < 3.1,
+    wai >= 3.0 && < 3.3,
     text >= 1.1 && < 1.3,
     bytestring >= 0.9 && <0.11,
     conduit >= 1.1 && < 1.3,