diff --git a/README.md b/README.md
index 7373f196e776f033c92ba328d1c378dc6c1bca65..e51cb7df3ab3fa8d2618bff1c7caf92c2e5f5faf 100644
--- a/README.md
+++ b/README.md
@@ -51,6 +51,7 @@ Finished List:
 - Codec
     * JsonRPC V2
     * Hessian V2
+    * [json for grpc](https://github.com/apache/dubbo-go/pull/582)
 
 - Protocol
     * Dubbo
@@ -111,6 +112,7 @@ Finished List:
     * [For jsonrpc](https://github.com/apache/dubbo-go/pull/335)
     * [For dubbo](https://github.com/apache/dubbo-go/pull/344)
     * [For grpc](https://github.com/apache/dubbo-go/pull/397)
+- 
 
 - Others:
     * start check
diff --git a/README_CN.md b/README_CN.md
index 35078e24b55425e595992060871b16379f5dfe62..4bf94226eb9222023187728387f42d336d7c55b7 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -50,6 +50,7 @@ Apache License, Version 2.0
 - 搴忓垪鍖栧崗璁�
     * JsonRPC V2
     * Hessian V2
+    * [json for grpc](https://github.com/apache/dubbo-go/pull/582)
 
 - 鍗忚
     * Dubbo