diff --git a/README.md b/README.md
index 1818ddd61cc5423c4a590815930d007303f18e81..f209e58b66cc4c056ff4ab30283213534eac52c0 100644
--- a/README.md
+++ b/README.md
@@ -53,7 +53,7 @@ You may need to use a domestic mirror source (in China, you can use the Tsinghua
 
 If you need install modules compiled with develop branch, please download packages from [latest packages list](./doc/LATEST_PACKAGES.md) and install with `pip install` command.
 
-Client package support Centos 7 and Ubuntu 18, or you can use HTTP service without install client.
+Packages of Paddle Serving support Centos 6/7 and Ubuntu 16/18, or you can use HTTP service without install client.
 
 
 <h2 align="center"> Pre-built services with Paddle Serving</h2>
diff --git a/README_CN.md b/README_CN.md
index 29cf095248f4c125b3dba7146e67efe8b7abae6c..05d3ad2100b15830d10c8bc4454a6d319d7b990b 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -55,7 +55,7 @@ pip install paddle-serving-server-gpu # GPU
 
 如果需要使用develop分支编译的安装包，请从[最新安装包列表](./doc/LATEST_PACKAGES.md)中获取下载地址进行下载，使用`pip install`命令进行安装。
 
-客户端安装包支持Centos 7和Ubuntu 18，或者您可以使用HTTP服务，这种情况下不需要安装客户端。
+Paddle Serving安装包支持Centos 6/7和Ubuntu 16/18，或者您可以使用HTTP服务，这种情况下不需要安装客户端。
 
 <h2 align="center"> Paddle Serving预装的服务 </h2>