diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -1,21 +1,21 @@
-MIT License
-
-Copyright (c) 2017 MATSUBARA Nobutada
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+MIT License
+
+Copyright (c) 2017 MATSUBARA Nobutada
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/Setup.hs b/Setup.hs
--- a/Setup.hs
+++ b/Setup.hs
@@ -1,2 +1,2 @@
-import Distribution.Simple
-main = defaultMain
+import Distribution.Simple
+main = defaultMain
diff --git a/chatwork.cabal b/chatwork.cabal
--- a/chatwork.cabal
+++ b/chatwork.cabal
@@ -3,7 +3,7 @@
 -- see: https://github.com/sol/hpack
 
 name:                chatwork
-version:             0.1.1.0
+version:             0.1.1.1
 synopsis:            The ChatWork API in Haskell
 description:         See README at <https://github.com/matsubara0507/chatwork#readme>
 homepage:            https://github.com/matsubara0507/chatwork#readme
@@ -48,7 +48,7 @@
       ChatWork.Internal
   build-depends:
       base >=4.7 && <5
-    , aeson >=1.0.2.1 && <1.2
+    , aeson >=1.0.2.1 && <1.3
     , aeson-casing >=0.1.0.5 && <0.2
     , bytestring >=0.10.8.1 && <0.11
     , connection >=0.2.7 && <0.3
@@ -61,6 +61,27 @@
     , text >=1.2.2.1 && <1.3
   default-language: Haskell2010
 
+executable sample-exe
+  main-is: Main.hs
+  hs-source-dirs:
+      sample
+  ghc-options: -Wall
+  build-depends:
+      base >=4.7 && <5
+    , aeson >=1.0.2.1 && <1.3
+    , aeson-casing >=0.1.0.5 && <0.2
+    , bytestring >=0.10.8.1 && <0.11
+    , connection >=0.2.7 && <0.3
+    , data-default-class >=0.1.2.0 && <0.2
+    , http-api-data >=0.3.5 && <0.3.8
+    , http-client >=0.5.5.0 && <0.6
+    , http-client-tls >=0.3.3.1 && <0.4
+    , http-types >=0.9.1 && <0.10
+    , req >=0.3.0 && <0.4
+    , text >=1.2.2.1 && <1.3
+    , chatwork
+  default-language: Haskell2010
+
 test-suite spec
   type: exitcode-stdio-1.0
   main-is: Spec.hs
@@ -70,7 +91,7 @@
   ghc-options: -Wall
   build-depends:
       base >=4.7 && <5
-    , aeson >=1.0.2.1 && <1.2
+    , aeson >=1.0.2.1 && <1.3
     , aeson-casing >=0.1.0.5 && <0.2
     , bytestring >=0.10.8.1 && <0.11
     , connection >=0.2.7 && <0.3
diff --git a/sample/Main.hs b/sample/Main.hs
new file mode 100644
--- /dev/null
+++ b/sample/Main.hs
@@ -0,0 +1,21 @@
+{-# LANGUAGE OverloadedStrings #-}
+
+import           ChatWork
+import           Network.HTTP.Req (responseBody)
+
+main :: IO ()
+main = do
+  let
+    token  = "xxx"
+    client = ChatWorkClient token
+  (Right myId) <- (fmap meToAccountId . responseBody) <$> getMe client
+  (Right ids) <-
+      (fmap (fmap contactToAccountId) . responseBody) <$> getContacts client
+  (Right roomId) <- (fmap getRoomId . responseBody) <$> createRoom client
+      (CreateRoomParams Nothing Nothing [myId] (Just ids) Nothing "test")
+  _ <- postMessage client roomId "Wellcome to Test Room !!"
+  _ <- createTask client roomId
+      (CreateTaskParams "Self-Introduction" Nothing ids)
+
+  putStrLn $
+    "I Created Test Room and Tasks that Self-Introductions to my contact members."
diff --git a/src/ChatWork/Types/My.hs b/src/ChatWork/Types/My.hs
--- a/src/ChatWork/Types/My.hs
+++ b/src/ChatWork/Types/My.hs
@@ -47,7 +47,7 @@
   parseJSON = genericParseJSON $ aesonDrop (strLength "myTaskTo") snakeCase
 
 -- |
--- see: <http://developer.chatwork.com/ja/endpoint_rooms.html#GET-rooms-room_id-tasks>
+-- see: <http://developer.chatwork.com/ja/endpoint_my.html#GET-my-tasks>
 data GetMyTasksParams = GetMyTasksParams
                    { getMyTasksAssignedByAccountId :: Maybe AccountId
                    , getMyTasksStatus              :: Maybe TaskStatus
diff --git a/test/Spec.hs b/test/Spec.hs
--- a/test/Spec.hs
+++ b/test/Spec.hs
@@ -1,1 +1,1 @@
-{-# OPTIONS_GHC -F -pgmF hspec-discover #-}
+{-# OPTIONS_GHC -F -pgmF hspec-discover #-}
