diff --git a/Web/Authenticate/OpenId.hs b/Web/Authenticate/OpenId.hs
--- a/Web/Authenticate/OpenId.hs
+++ b/Web/Authenticate/OpenId.hs
@@ -23,7 +23,7 @@
 import Network.HTTP.Wget
 import Text.HTML.TagSoup
 import Numeric (showHex)
-import Control.Monad.Trans
+import Control.Monad.IO.Class
 import qualified Safe.Failure as A
 import Data.Generics
 import Control.Failure hiding (Error)
diff --git a/Web/Authenticate/Rpxnow.hs b/Web/Authenticate/Rpxnow.hs
--- a/Web/Authenticate/Rpxnow.hs
+++ b/Web/Authenticate/Rpxnow.hs
@@ -20,7 +20,7 @@
 import Text.JSON -- FIXME use Data.Object.JSON
 import Network.HTTP.Wget
 import Data.Maybe (isJust, fromJust)
-import Control.Monad.Trans
+import Control.Monad.IO.Class
 import Control.Failure
 
 -- | Information received from Rpxnow after a valid login.
diff --git a/authenticate.cabal b/authenticate.cabal
--- a/authenticate.cabal
+++ b/authenticate.cabal
@@ -1,5 +1,5 @@
 name:            authenticate
-version:         0.4.0.1
+version:         0.6.0
 license:         BSD3
 license-file:    LICENSE
 author:          Michael Snoyman <michael@snoyman.com>
@@ -16,11 +16,11 @@
 library
     build-depends:   base >= 4 && < 5,
                      json >= 0.4.3 && < 0.5,
-                     http-wget >= 0.4.0 && < 0.5,
+                     http-wget >= 0.6 && < 0.7,
                      tagsoup >= 0.6 && < 0.9,
                      failure >= 0.0.0 && < 0.1,
                      safe-failure >= 0.4 && < 0.5,
-                     transformers >= 0.1.4.0 && < 0.2,
+                     transformers >= 0.2 && < 0.3,
                      syb
     exposed-modules: Web.Authenticate.Rpxnow,
                      Web.Authenticate.OpenId