diff --git a/README.lhs b/README.lhs
--- a/README.lhs
+++ b/README.lhs
@@ -14,11 +14,9 @@
 import           Test.Hspec.Wai
 import           Test.Hspec.Wai.JSON
 
-import           Network.HTTP.Types (hContentType)
 import           Network.Wai (Application)
-
-import           Data.Aeson (Value(..), object, (.=))
 import qualified Web.Scotty as S
+import           Data.Aeson (Value(..), object, (.=))
 
 main :: IO ()
 main = hspec spec
@@ -46,7 +44,7 @@
       get "/" `shouldRespondWith` "hello" {matchStatus = 200}
 
     it "has Content-Type: text/plain" $ do
-      get "/" `shouldRespondWith` 200 {matchHeaders = [(hContentType, "text/plain")]}
+      get "/" `shouldRespondWith` 200 {matchHeaders = [("Content-Type", "text/plain")]}
 
   describe "GET /some-json" $ do
     it "responds with some JSON" $ do
diff --git a/hspec-wai.cabal b/hspec-wai.cabal
--- a/hspec-wai.cabal
+++ b/hspec-wai.cabal
@@ -1,5 +1,5 @@
 name:             hspec-wai
-version:          0.3.0.1
+version:          0.3.0.2
 license:          MIT
 license-file:     LICENSE
 copyright:        (c) 2012-2014 Fujimura Daisuke,
@@ -46,7 +46,7 @@
   type:
       exitcode-stdio-1.0
   ghc-options:
-      -Wall -Werror
+      -Wall
   hs-source-dirs:
       src, test
   main-is:
@@ -64,24 +64,11 @@
 
     , hspec-meta
 
-test-suite doctests
-  main-is:
-      doctests.hs
-  type:
-      exitcode-stdio-1.0
-  ghc-options:
-      -Wall -Werror -threaded
-  hs-source-dirs:
-      test
-  build-depends:
-      base    == 4.*
-    , doctest >= 0.9.4.1
-
 test-suite README
   type:
       exitcode-stdio-1.0
   ghc-options:
-      -Wall -Werror -pgmL markdown-unlit
+      -Wall -pgmL markdown-unlit
   main-is:
       README.lhs
   build-depends:
@@ -89,7 +76,6 @@
     , markdown-unlit
     , hspec2
     , hspec-wai
-    , http-types
     , aeson
     , wai
     , scotty
diff --git a/test/doctests.hs b/test/doctests.hs
deleted file mode 100644
--- a/test/doctests.hs
+++ /dev/null
@@ -1,22 +0,0 @@
-module Main where
-
-import           Test.DocTest
-
-main :: IO ()
-main = doctest [
-    "-isrc"
-  , "-hide-all-packages"
-  , "-package base"
-  , "-package bytestring"
-  , "-package text"
-  , "-package transformers"
-  , "-package case-insensitive"
-  , "-package http-types"
-  , "-package wai"
-  , "-package wai-extra"
-  , "-package hspec2"
-  , "-package template-haskell"
-  , "-package aeson"
-  , "-package aeson-qq"
-  , "src/Test/Hspec/Wai/JSON.hs"
-  ]