diff --git a/yesod-auth-kerberos.cabal b/yesod-auth-kerberos.cabal
--- a/yesod-auth-kerberos.cabal
+++ b/yesod-auth-kerberos.cabal
@@ -1,5 +1,5 @@
 name:            yesod-auth-kerberos
-version:         1.0.0
+version:         1.0.1
 license:         BSD3
 license-file:    LICENSE
 author:          Arash Rouhani
@@ -28,7 +28,7 @@
                    , hamlet                  >= 1.0.0     && < 2.0.0
                    , bytestring              >= 0.9.1.4   && < 0.10
                    , text                    >= 0.7       && < 0.12
-                   , transformers            >= 0.2.2     && < 0.3
+                   , transformers            >= 0.2.2     && < 0.4
 
     exposed-modules: Yesod.Auth.Kerberos
     ghc-options:     -Wall