diff --git a/engine-io-yesod.cabal b/engine-io-yesod.cabal
--- a/engine-io-yesod.cabal
+++ b/engine-io-yesod.cabal
@@ -1,12 +1,12 @@
 name: engine-io-yesod
-version: 1.0.1
+version: 1.0.2
 license: BSD3
 license-file: LICENSE
 author: Tim Baumann
 maintainer: tim@timbaumann.info
 category: Network
 build-type: Simple
--- extra-source-files:  
+-- extra-source-files:
 cabal-version: >=1.10
 description:
   This package provides an @engine-io@ @ServerAPI@ that is compatible with
@@ -17,8 +17,8 @@
     Network.EngineIO.Yesod
 
   build-depends:
-    base >=4.6 && <4.8,
-    yesod-core >= 1.2.16.1 && < 1.3,
+    base >=4.6 && <4.9,
+    yesod-core >= 1.2.16.1 && < 1.5,
     engine-io >= 1.2 && < 1.3,
     http-types >= 0.8 && < 0.9,
     unordered-containers >= 0.2 && < 0.3,