diff --git a/registry-messagepack.cabal b/registry-messagepack.cabal
--- a/registry-messagepack.cabal
+++ b/registry-messagepack.cabal
@@ -1,11 +1,11 @@
 cabal-version: 1.12
 
--- This file has been generated from package.yaml by hpack version 0.34.4.
+-- This file has been generated from package.yaml by hpack version 0.35.0.
 --
 -- see: https://github.com/sol/hpack
 
 name:           registry-messagepack
-version:        0.3.0.2
+version:        0.3.1.0
 synopsis:       MessagePack encoders / decoders
 description:    This library provides encoders / decoders which can be easily customized for the MessagePack format.
 category:       Data
diff --git a/src/Data/Registry/MessagePack/Decoder.hs b/src/Data/Registry/MessagePack/Decoder.hs
--- a/src/Data/Registry/MessagePack/Decoder.hs
+++ b/src/Data/Registry/MessagePack/Decoder.hs
@@ -14,7 +14,6 @@
 import Data.List (nub)
 import Data.MessagePack as MP
 import Data.Registry
-import Data.Registry.Internal.Types
 import Data.Registry.MessagePack.Options
 import Data.Registry.MessagePack.TH
 import qualified Data.Vector as Vector
diff --git a/src/Data/Registry/MessagePack/Encoder.hs b/src/Data/Registry/MessagePack/Encoder.hs
--- a/src/Data/Registry/MessagePack/Encoder.hs
+++ b/src/Data/Registry/MessagePack/Encoder.hs
@@ -15,7 +15,6 @@
 import Data.List (nub)
 import Data.MessagePack
 import Data.Registry
-import Data.Registry.Internal.Types
 import Data.Registry.MessagePack.Options
 import Data.Registry.MessagePack.TH
 import Language.Haskell.TH