diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,12 @@
 # Changelog
 
+#### 0.2.10.7
+
+* Bump `rest-core` and `rest-gen` upper bounds.
+
 #### 0.2.10.6
 
-* Allow utf8-string 1.
+* Allow `utf8-string 1.0.*`.
 
 #### 0.2.10.5
 
diff --git a/rest-happstack.cabal b/rest-happstack.cabal
--- a/rest-happstack.cabal
+++ b/rest-happstack.cabal
@@ -1,5 +1,5 @@
 name:                rest-happstack
-version:             0.2.10.6
+version:             0.2.10.7
 description:         Rest driver for Happstack.
 synopsis:            Rest driver for Happstack.
 maintainer:          code@silk.co
@@ -28,6 +28,6 @@
     , containers >= 0.4 && < 0.6
     , happstack-server >= 7.0.5 && < 7.5
     , mtl >= 2.0 && < 2.3
-    , rest-core == 0.34.*
-    , rest-gen >= 0.14 && < 0.17
+    , rest-core >= 0.34 && < 0.36
+    , rest-gen >= 0.14 && < 0.18
     , utf8-string >= 0.3 && < 1.1
diff --git a/src/Rest/Driver/Happstack.hs b/src/Rest/Driver/Happstack.hs
--- a/src/Rest/Driver/Happstack.hs
+++ b/src/Rest/Driver/Happstack.hs
@@ -1,6 +1,9 @@
 {-# OPTIONS_GHC -fno-warn-orphans #-}
 {-# LANGUAGE RankNTypes #-}
-module Rest.Driver.Happstack (apiToHandler, apiToHandler') where
+module Rest.Driver.Happstack
+  ( apiToHandler
+  , apiToHandler'
+  ) where
 
 import Control.Applicative
 import Control.Concurrent.MVar (readMVar)
@@ -16,8 +19,8 @@
 import Rest.Driver.Perform (Rest (..))
 import Rest.Driver.Types (Run)
 
-import qualified Rest.Run          as Rest
 import qualified Rest.Driver.Types as Rest
+import qualified Rest.Run          as Rest
 
 apiToHandler :: (Functor m, MonadPlus m, MonadIO m) => Api (ServerPartT m) -> ServerPartT m Response
 apiToHandler = apiToHandler' id
diff --git a/src/Rest/Driver/Happstack/Docs.hs b/src/Rest/Driver/Happstack/Docs.hs
--- a/src/Rest/Driver/Happstack/Docs.hs
+++ b/src/Rest/Driver/Happstack/Docs.hs
@@ -1,7 +1,5 @@
 {-# LANGUAGE FlexibleContexts #-}
-module Rest.Driver.Happstack.Docs
-  ( apiDocsHandler
-  ) where
+module Rest.Driver.Happstack.Docs (apiDocsHandler) where
 
 import Control.Monad
 import Control.Monad.Trans