diff --git a/Network/Wai/Parse.hs b/Network/Wai/Parse.hs
--- a/Network/Wai/Parse.hs
+++ b/Network/Wai/Parse.hs
@@ -55,6 +55,8 @@
 #if MIN_VERSION_conduit(1, 0, 0)
 import Data.Conduit.Internal (Pipe (NeedInput, HaveOutput), (>+>), withUpstream, injectLeftovers, ConduitM (..))
 import Data.Void (Void)
+#else
+import Data.Conduit.Internal (sinkToPipe)
 #endif
 
 breakDiscard :: Word8 -> S.ByteString -> (S.ByteString, S.ByteString)
diff --git a/wai-extra.cabal b/wai-extra.cabal
--- a/wai-extra.cabal
+++ b/wai-extra.cabal
@@ -1,5 +1,5 @@
 Name:                wai-extra
-Version:             1.3.4.1
+Version:             1.3.4.2
 Synopsis:            Provides some basic WAI handlers and middleware.
 Description:         The goal here is to provide common features without many dependencies.
 License:             MIT