diff --git a/README.md b/README.md
index 1e978734879953004472c57749d7c450a55ff09c..245b693fb3dac5c7d6058a2d57dcc33c1d41e309 100644
--- a/README.md
+++ b/README.md
@@ -54,10 +54,16 @@ Todo List:
 
 You can know more about dubbo-go by its [roadmap](https://github.com/apache/dubbo-go/wiki/Roadmap).
 
+
+
 ## Quick Start
 
 The subdirectory examples shows how to use dubbo-go. Please read the [examples/README.md](https://github.com/apache/dubbo-go/blob/develop/examples/README.md) carefully to learn how to dispose the configuration and compile the program.
 
+## Contributing
+
+If you are willing to do some code contributions and document contributions to [Apache/dubbo-go](https://github.com/apache/dubbo-go), please visit [contribution intro](https://github.com/apache/dubbo-go/blob/master/cg.md).
+
 ## Benchmark
 
 Benchmark project please refer to [go-for-apache-dubbo-benchmark](https://github.com/dubbogo/go-for-apache-dubbo-benchmark)
diff --git a/README_CN.md b/README_CN.md
index eece857dfb391422baf64d61fd874c273cb2f9fe..a5502d1379ac4e3ba977ac1727c1c30f9ce488b2 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -58,6 +58,10 @@ Apache License, Version 2.0
 
 杩欎釜瀛愮洰褰曚笅鐨勪緥瀛愬睍绀轰簡濡備綍浣跨敤 dubbo-go 銆傝浠旂粏闃呰 [examples/README.md](https://github.com/apache/dubbo-go/blob/develop/examples/README.md) 瀛︿範濡備綍澶勭悊閰嶇疆骞剁紪璇戠▼搴忋€�
 
+## 濡備綍璐$尞
+
+濡傛灉鎮ㄦ効鎰忕粰 [Apache/dubbo-go](https://github.com/apache/dubbo-go) 璐$尞浠g爜鎴栬€呮枃妗o紝鎴戜滑閮界儹鐑堟杩庛€傚叿浣撹鍙傝€� [contribution intro](https://github.com/apache/dubbo-go/blob/master/cg.md)銆�
+
 ## 鎬ц兘娴嬭瘯 ##
 
 鎬ц兘娴嬭瘯椤圭洰鏄� [go-for-apache-dubbo-benchmark](https://github.com/dubbogo/go-for-apache-dubbo-benchmark)
diff --git a/go.mod b/go.mod
index 01539076830969dfcd13c3e494a505ff5665a4f1..8fd3c215fbb38b9c54a6570630f5ef32ad8f56c1 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/apache/dubbo-go
 require (
 	github.com/dubbogo/getty v1.0.7
 	github.com/dubbogo/gost v1.0.0
-	github.com/dubbogo/hessian2 v1.0.3-0.20190702113824-3b1b4945581d
+	github.com/dubbogo/hessian2 v1.1.2
 	github.com/magiconair/properties v1.8.1
 	github.com/pkg/errors v0.8.1
 	github.com/samuel/go-zookeeper v0.0.0-20180130194729-c4fab1ac1bec
diff --git a/go.sum b/go.sum
index 8a1e2c97fd15253fd6c3ba65e09ab369bc3fe59e..859e9aab1c882f3864668b45c6ac47ce7f01b262 100644
--- a/go.sum
+++ b/go.sum
@@ -5,8 +5,8 @@ github.com/dubbogo/getty v1.0.7 h1:5Hg+JwXyCKm9Yr4yJkm98ahhnoa8c2h6br5QJxwQ+YU=
 github.com/dubbogo/getty v1.0.7/go.mod h1:cRMSuoCmwc5lULFFnYZTxyCfZhObmRTNbS7XRnPNHSo=
 github.com/dubbogo/gost v1.0.0 h1:obKvpJYdrIY2BidHYwYoj2E50OtwCDqVVVTcH2nnhAY=
 github.com/dubbogo/gost v1.0.0/go.mod h1:R7wZm1DrmrKGr50mBZVcg6C9ekG8aL5hP+sgWcIDwQg=
-github.com/dubbogo/hessian2 v1.0.3-0.20190702113824-3b1b4945581d h1:ovbb5cbkHltqL5CzhrwHEtRRHTFaBUyjPT1SQjqm80E=
-github.com/dubbogo/hessian2 v1.0.3-0.20190702113824-3b1b4945581d/go.mod h1:XFGDn4oSZX26zkcfhkM/fCJrOqwQJxk/xgWW1KMJBKM=
+github.com/dubbogo/hessian2 v1.1.2 h1:SRkPzIwVv2D+ZUOCE2XuI5kANoL01ShhAheLcc3usJE=
+github.com/dubbogo/hessian2 v1.1.2/go.mod h1:XFGDn4oSZX26zkcfhkM/fCJrOqwQJxk/xgWW1KMJBKM=
 github.com/golang/snappy v0.0.1 h1:Qgr9rKW7uDUkrbSmQeiDsGa8SjGyCOGtuasMWwvp2P4=
 github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/gorilla/websocket v1.4.0 h1:WDFjx/TMzVgy9VdMMQi2K2Emtwi2QcUQsztZ/zLaH/Q=