diff --git a/README.lhs b/README.lhs
--- a/README.lhs
+++ b/README.lhs
@@ -27,9 +27,11 @@
 app = S.scottyApp $ do
   S.get "/" $ do
     S.text "hello"
+    S.setHeader "Content-Type" "text/plain"
 
   S.get "/some-json" $ do
     S.json $ object ["foo" .= Number 23, "bar" .= Number 42]
+    S.setHeader "Content-Type" "application/json"
 
 spec :: Spec
 spec = with app $ 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
+version:          0.3.0.1
 license:          MIT
 license-file:     LICENSE
 copyright:        (c) 2012-2014 Fujimura Daisuke,