diff --git a/example/Keys.hs b/example/Keys.hs
--- a/example/Keys.hs
+++ b/example/Keys.hs
@@ -8,50 +8,51 @@
 import           URI.ByteString.QQ
 
 weiboKey :: OAuth2
-weiboKey = OAuth2 { oauthClientId = "xxxxxxxxxxxxxxx"
-                   , oauthClientSecret = "xxxxxxxxxxxxxxxxxxxxxx"
-                   , oauthCallback = Just [uri|http://127.0.0.1:9988/oauthCallback|]
-                   , oauthOAuthorizeEndpoint = [uri|https://api.weibo.com/oauth2/authorize|]
-                   , oauthAccessTokenEndpoint = [uri|https://api.weibo.com/oauth2/access_token|]
-                   }
+weiboKey = OAuth2 { oauthClientId = "1962132691"
+                  , oauthClientSecret = "a2ad30383bdff9bcb12be6a3d30deeb1"
+                  , oauthCallback = Just [uri|http://127.0.0.1:9988/oauthCallback|]
+                  , oauthOAuthorizeEndpoint = [uri|https://api.weibo.com/oauth2/authorize|]
+                  , oauthAccessTokenEndpoint = [uri|https://api.weibo.com/oauth2/access_token|]
+                  }
 
 -- | http://developer.github.com/v3/oauth/
 githubKey :: OAuth2
-githubKey = OAuth2 { oauthClientId = "xxxxxxxxxxxxxxx"
-                    , oauthClientSecret = "xxxxxxxxxxxxxxxxxxxxxx"
-                    , oauthCallback = Just [uri|http://127.0.0.1:9988/githubCallback|]
-                    , oauthOAuthorizeEndpoint = [uri|https://github.com/login/oauth/authorize|]
-                    , oauthAccessTokenEndpoint = [uri|https://github.com/login/oauth/access_token|]
-                    }
+githubKey = OAuth2 { oauthClientId = "bf86d338485a96a93c88"
+                   , oauthClientSecret = "a1c00dada665dc00aa6fafe0495c7c885f82d1ce"
+                   , oauthCallback = Just [uri|http://127.0.0.1:9988/githubCallback|]
+                   , oauthOAuthorizeEndpoint = [uri|https://github.com/login/oauth/authorize|]
+                   , oauthAccessTokenEndpoint = [uri|https://github.com/login/oauth/access_token|]
+                   }
 
 -- | oauthCallback = Just "https://developers.google.com/oauthplayground"
 googleKey :: OAuth2
-googleKey = OAuth2 { oauthClientId = "xxxxxxxxxxxxxxx.apps.googleusercontent.com"
-                   , oauthClientSecret = "xxxxxxxxxxxxxxxxxxxxxx"
+googleKey = OAuth2 { oauthClientId = "886894027376.apps.googleusercontent.com"
+                   , oauthClientSecret = "27w98gwGB1h8N5a6JQ2bT_nm"
                    , oauthCallback = Just [uri|http://127.0.0.1:9988/googleCallback|]
                    , oauthOAuthorizeEndpoint = [uri|https://accounts.google.com/o/oauth2/auth|]
                    , oauthAccessTokenEndpoint = [uri|https://www.googleapis.com/oauth2/v3/token|]
                    }
 
+
 facebookKey :: OAuth2
-facebookKey = OAuth2 { oauthClientId = "xxxxxxxxxxxxxxx"
-                     , oauthClientSecret = "xxxxxxxxxxxxxxxxxxxxxx"
+facebookKey = OAuth2 { oauthClientId = "414630782030965"
+                     , oauthClientSecret = "0e648eae100da4d03f16594f231fc1d0"
                      , oauthCallback = Just [uri|http://t.haskellcn.org/cb|]
                      , oauthOAuthorizeEndpoint = [uri|https://www.facebook.com/dialog/oauth|]
                      , oauthAccessTokenEndpoint = [uri|https://graph.facebook.com/v2.3/oauth/access_token|]
                      }
 
 doubanKey :: OAuth2
-doubanKey = OAuth2 { oauthClientId = "xxxxxxxxxxxxxxx"
-                   , oauthClientSecret = "xxxxxxxxxxxxxxxxxxxxxx"
+doubanKey = OAuth2 { oauthClientId = "02a914cf299ca31607fb3e6d7cd5e942"
+                   , oauthClientSecret = "3c0fdef13b0dd271"
                    , oauthCallback = Just [uri|http://localhost:9999/oauthCallback|]
                    , oauthOAuthorizeEndpoint = [uri|https://www.douban.com/service/auth2/auth|]
                    , oauthAccessTokenEndpoint = [uri|https://www.douban.com/service/auth2/token|]
                    }
 
 fitbitKey :: OAuth2
-fitbitKey = OAuth2 { oauthClientId = "xxxxxx"
-                   , oauthClientSecret = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+fitbitKey = OAuth2 { oauthClientId = "229LN9"
+                   , oauthClientSecret = "2f4aa9a275c2d4bb9eb616efbd2c1311"
                    , oauthCallback = Just [uri|http://localhost:9988/oauth2/callback|]
                    , oauthOAuthorizeEndpoint = [uri|https://www.fitbit.com/oauth2/authorize|]
                    , oauthAccessTokenEndpoint = [uri|https://api.fitbit.com/oauth2/token|]
@@ -63,15 +64,16 @@
 stackexchangeAppKey = "xxxxxx"
 
 stackexchangeKey :: OAuth2
-stackexchangeKey = OAuth2 { oauthClientId = "xx"
-                          , oauthClientSecret = "xxxxxxxxxxxxxxx"
+stackexchangeKey = OAuth2 { oauthClientId = "7185"
+                          , oauthClientSecret = "K5hK)ET*dbFGFmNFVtqIyA(("
                           , oauthCallback = Just [uri|http://c.haskellcn.org/cb|]
                           , oauthOAuthorizeEndpoint = [uri|https://stackexchange.com/oauth|]
                           , oauthAccessTokenEndpoint = [uri|https://stackexchange.com/oauth/access_token|]
                           }
+
 dropboxKey :: OAuth2
-dropboxKey = OAuth2 { oauthClientId = "xxx"
-                    , oauthClientSecret = "xxx"
+dropboxKey = OAuth2 { oauthClientId = "zbyxxox19gz6dgg"
+                    , oauthClientSecret = "ihhui0ysp85oi8s"
                     , oauthCallback = Just [uri|http://localhost:9988/oauth2/callback|]
                     , oauthOAuthorizeEndpoint = [uri|https://www.dropbox.com/1/oauth2/authorize|]
                     , oauthAccessTokenEndpoint = [uri|https://api.dropboxapi.com/oauth2/token|]
diff --git a/hoauth2.cabal b/hoauth2.cabal
--- a/hoauth2.cabal
+++ b/hoauth2.cabal
@@ -1,6 +1,6 @@
 Name:                hoauth2
 -- http://wiki.haskell.org/Package_versioning_policy
-Version:             1.8.3
+Version:             1.8.4
 
 Synopsis:            Haskell OAuth2 authentication client
 
@@ -131,7 +131,7 @@
                        containers        >= 0.4    && < 0.7,
                        aeson             >= 1.0.0.0 && < 1.5,
                        microlens            >= 0.4.0 && < 0.5,
-                       unordered-containers >= 0.2.8 && < 0.2.10,
+                       unordered-containers >= 0.2.5,
                        wai-extra >= 3.0.21.0 && < 3.0.25.0,
                        wai-middleware-static >= 0.8.1 && < 0.8.3,
                        mustache >= 2.2.3 && < 2.4.0,