diff --git a/README.md b/README.md
index b2878f3..e558c79 100644
--- a/README.md
+++ b/README.md
@@ -33,7 +33,7 @@ Here's an example for adding the middleware to a Rails app in `config/initialize
 
 ```ruby
 Rails.application.config.middleware.use OmniAuth::Builder do
-  provider :wechat, ENV["WECHAT_APP_ID"], ENV["WECHAT_APP_SECRET"]
+  provider :wechat, ENV["WECHAT_APP_ID"], ENV["WECHAT_APP_SECRET"], scope: 'snsapi_userinfo'
 end
 ```
 
@@ -76,7 +76,8 @@ Here's an example of an authentication hash available in the callback by accessi
     },
     :extra => {
         :raw_info => {
-          openid:     "openid"
+          unionid:    "unionid", #if exist
+          openid:     "openid",
           nickname:   "Nickname",
           sex:        1,
           province:   "Changning",
@@ -87,7 +88,3 @@ Here's an example of an authentication hash available in the callback by accessi
     }
 }
 ```
-
-
-
-
diff --git a/lib/omniauth/strategies/wechat.rb b/lib/omniauth/strategies/wechat.rb
index 6f166e5..bb9af1f 100644
--- a/lib/omniauth/strategies/wechat.rb
+++ b/lib/omniauth/strategies/wechat.rb
@@ -7,7 +7,7 @@ class Wechat < OmniAuth::Strategies::OAuth2
 
       option :client_options, {
         site:          "https://api.weixin.qq.com",
-        authorize_url: "https://open.weixin.qq.com/connect/qrconnect?#wechat_redirect",
+        authorize_url: "https://open.weixin.qq.com/connect/oauth2/authorize?#wechat_redirect",
         token_url:     "/sns/oauth2/access_token",
         token_method:  :get
       }
diff --git a/spec/omniauth/strategies/wechat_spec.rb b/spec/omniauth/strategies/wechat_spec.rb
index 7418d3e..62b49a2 100644
--- a/spec/omniauth/strategies/wechat_spec.rb
+++ b/spec/omniauth/strategies/wechat_spec.rb
@@ -27,7 +27,7 @@
     end
 
     specify 'has authorize_url' do
-      expect(subject.client.options[:authorize_url]).to eq('https://open.weixin.qq.com/connect/qrconnect?#wechat_redirect')
+      expect(subject.client.options[:authorize_url]).to eq('https://open.weixin.qq.com/connect/oauth2/authorize?#wechat_redirect')
     end
 
     specify 'has token_url' do
@@ -99,8 +99,8 @@
 
     context "when scope is snsapi_base" do
       let(:access_token) { OAuth2::AccessToken.from_hash(client, {
-        "openid"=>"openid", 
-        "scope"=>"snsapi_base", 
+        "openid"=>"openid",
+        "scope"=>"snsapi_base",
         "access_token"=>"access_token"
       })}
 
@@ -112,8 +112,8 @@
 
     context "when scope is snsapi_userinfo" do
       let(:access_token) { OAuth2::AccessToken.from_hash(client, {
-        "openid"=>"openid", 
-        "scope"=>"snsapi_userinfo", 
+        "openid"=>"openid",
+        "scope"=>"snsapi_userinfo",
         "access_token"=>"access_token"
       })}
 
@@ -147,4 +147,4 @@
 
 
 
-end
\ No newline at end of file
+end