diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -7,6 +7,13 @@
 
 ## [Unreleased]
 
-## [0.1.1] - 2018-08-25
+## [0.1.1] - 2018-11-28
+
+### Changes
+
+- ditch hpack @domenkozar
+- add Show instance for MixpanelError
+
+## [0.1.0.0] - 2018-08-25
 
 - Intial release @domenkozar
diff --git a/mixpanel-client.cabal b/mixpanel-client.cabal
--- a/mixpanel-client.cabal
+++ b/mixpanel-client.cabal
@@ -1,11 +1,5 @@
--- This file has been generated from package.yaml by hpack version 0.28.2.
---
--- see: https://github.com/sol/hpack
---
--- hash: 491a6eeca6a6f94f2fbd7939dffe3bdf350c15ec0a7287c81ade08416e93c4a6
-
 name:           mixpanel-client
-version:        0.1.0.0
+version:        0.1.1
 synopsis:       Mixpanel client
 homepage:       https://github.com/domenkozar/mixpanel-client#readme
 bug-reports:    https://github.com/domenkozar/mixpanel-client/issues
@@ -31,8 +25,6 @@
       MixPanel.Types.Core
       MixPanel.Types.EngageData
       MixPanel.Types.TrackData
-  other-modules:
-      Paths_mixpanel_client
   hs-source-dirs:
       src
   default-extensions: OverloadedStrings LambdaCase DeriveGeneric DeriveFunctor DeriveAnyClass RecordWildCards
@@ -57,7 +49,6 @@
   other-modules:
       Spec
       TypesSpec
-      Paths_mixpanel_client
   hs-source-dirs:
       test
   default-extensions: OverloadedStrings LambdaCase DeriveGeneric DeriveFunctor DeriveAnyClass RecordWildCards
diff --git a/src/MixPanel.hs b/src/MixPanel.hs
--- a/src/MixPanel.hs
+++ b/src/MixPanel.hs
@@ -15,6 +15,7 @@
   , HTTP.newManager
   ) where
 
+import           Control.Exception              ( Exception )
 import           Data.Aeson                     ( Object, (.=) )
 import           Data.Text                      ( Text )
 import           GHC.Exts                       ( fromList )
@@ -40,6 +41,7 @@
 data MixPanelError
   = ServantError ServantError
   | Error Text
+  deriving (Show, Exception)
 
 data Env = Env
   { authtoken :: AuthToken