diff --git a/Data/Conduit/Serialization/Binary.hs b/Data/Conduit/Serialization/Binary.hs
--- a/Data/Conduit/Serialization/Binary.hs
+++ b/Data/Conduit/Serialization/Binary.hs
@@ -96,11 +96,11 @@
 conduitPutGeneric(conduitPutMany, yield (V.fromList (LBS.toChunks (runPut x))))
 
 -- | Create stream of strict bytestrings from 'Put' value.
-sourcePut :: (MonadThrow m) => Put -> Producer m ByteString
+sourcePut :: MonadThrow m => Put -> Producer m ByteString
 sourcePut = CL.sourceList . LBS.toChunks . runPut
 
 -- | Decode message from input stream.
-sinkGet :: (Binary b, MonadThrow m) => Get b -> Consumer ByteString m b
+sinkGet :: MonadThrow m => Get b -> Consumer ByteString m b
 sinkGet f = sink (runGetIncremental f)
   where
       sink (Done bs _ v)  = leftover bs >> return v
diff --git a/binary-conduit.cabal b/binary-conduit.cabal
--- a/binary-conduit.cabal
+++ b/binary-conduit.cabal
@@ -1,5 +1,5 @@
 name:                binary-conduit
-version:             1.2.1.1
+version:             1.2.2
 synopsis:            data serialization/deserialization conduit library
 description:         The binary-conduit package.
       Allow binary serialization using iterative conduit interface.