diff --git a/Network/HPACK/Table/Dynamic.hs b/Network/HPACK/Table/Dynamic.hs
--- a/Network/HPACK/Table/Dynamic.hs
+++ b/Network/HPACK/Table/Dynamic.hs
@@ -1,4 +1,4 @@
-{-# LANGUAGE TupleSections, RecordWildCards #-}
+{-# LANGUAGE TupleSections, RecordWildCards, FlexibleContexts #-}
 
 module Network.HPACK.Table.Dynamic (
     DynamicTable(..)
diff --git a/http2.cabal b/http2.cabal
--- a/http2.cabal
+++ b/http2.cabal
@@ -1,5 +1,5 @@
 Name:                   http2
-Version:                0.9.0
+Version:                0.9.1
 Author:                 Kazu Yamamoto <kazu@iij.ad.jp>
 Maintainer:             Kazu Yamamoto <kazu@iij.ad.jp>
 License:                BSD3