diff --git a/Network/Wai/Handler/Warp/Conduit.hs b/Network/Wai/Handler/Warp/Conduit.hs
--- a/Network/Wai/Handler/Warp/Conduit.hs
+++ b/Network/Wai/Handler/Warp/Conduit.hs
@@ -79,6 +79,9 @@
                 | NeedLenNewline
                 | HaveLen Word
 
+bsCRLF :: L.ByteString
+bsCRLF = pack "\r\n"
+
 chunkedSource :: MonadIO m
               => I.IORef (ResumableSource m ByteString, ChunkState)
               -> Source m ByteString
@@ -99,7 +102,7 @@
         -- Drop the final CRLF
         (src', ()) <- lift $ src $$++ do
             crlf <- CB.take 2
-            unless (crlf == pack "\r\n") $ leftover $ S.concat $ L.toChunks crlf
+            unless (crlf == bsCRLF) $ leftover $ S.concat $ L.toChunks crlf
         liftIO $ I.writeIORef ipair (src', HaveLen 0)
     go src (HaveLen len) = do
         (src', mbs) <- lift $ src $$++ CL.head
diff --git a/warp.cabal b/warp.cabal
--- a/warp.cabal
+++ b/warp.cabal
@@ -1,5 +1,5 @@
 Name:                warp
-Version:             1.3.3
+Version:             1.3.3.1
 Synopsis:            A fast, light-weight web server for WAI applications.
 License:             MIT
 License-file:        LICENSE
@@ -25,7 +25,7 @@
                    , ghc-prim
                    , http-types                >= 0.7      && < 0.8
                    , lifted-base               >= 0.1      && < 0.2
-                   , network-conduit           >= 0.5      && < 0.6
+                   , network-conduit           >= 0.5      && < 0.7
                    , simple-sendfile           >= 0.2.7    && < 0.3
                    , transformers              >= 0.2.2    && < 0.4
                    , unix-compat               >= 0.2