diff --git a/src/Network/Wai/Middleware/ContentType/Types.hs b/src/Network/Wai/Middleware/ContentType/Types.hs
--- a/src/Network/Wai/Middleware/ContentType/Types.hs
+++ b/src/Network/Wai/Middleware/ContentType/Types.hs
@@ -174,7 +174,7 @@
   } deriving ( Functor, Applicative, Alternative, Monad, MonadFix, MonadPlus, MonadIO
              , MonadWriter w, MonadState FileExtMap
              , MonadCont, MonadError e, MonadBase b, MonadThrow, MonadCatch
-             , MonadMask, MonadLogger, MonadUrl b f
+             , MonadMask, MonadLogger, MonadUrl
              )
 
 getLogger :: Monad m => FileExtListenerT m (Status -> Maybe Integer -> IO ())
diff --git a/wai-middleware-content-type.cabal b/wai-middleware-content-type.cabal
--- a/wai-middleware-content-type.cabal
+++ b/wai-middleware-content-type.cabal
@@ -2,10 +2,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: fed743c9d2b0d613f04ead0d53fa3b28ca25f57b5f76f0edcb6943fe4d73f922
+-- hash: 0ed9983cf563a9a4a966eb6dc4d58b7381960eb1aaf26875a6fcdb24c37eb576
 
 name:           wai-middleware-content-type
-version:        0.6.1.1
+version:        0.6.1.2
 synopsis:       Route to different middlewares based on the incoming Accept header.
 description:    Please see the README on Github at <https://git.localcooking.com/tooling/wai-middleware-content-type#readme>
 category:       Web
@@ -68,7 +68,7 @@
     , transformers
     , transformers-base
     , unordered-containers
-    , urlpath >=8.0.1
+    , urlpath >=9.0.0
     , wai >=3.2
     , wai-logger
     , wai-transformers >=0.1.0