diff --git a/README.md b/README.md
index a2897da4139e8925321f8e24b1d5a36b37f3de5c..cf3e59f1be864c66cf2913e28a04f3e2bd05b195 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ Sky Walking
 [![Release Version](https://img.shields.io/badge/tesing-3.0--2017-yellow.svg)](https://github.com/wu-sheng/sky-walking/releases)
 
 
-* Auto-instrumentation mechanism, **no need to CHANGE any application source code**. [Supported middlewares, frameworks or libraries](https://github.com/wu-sheng/sky-walking/wiki/3.0-supported-list).
+* Auto-instrumentation mechanism, **no need to CHANGE any application source code**. [Supported middlewares, frameworks and libraries](https://github.com/wu-sheng/sky-walking/wiki/3.0-supported-list).
 * Pure Java server implementation, with RESTful Web service.
 * High performance streaming analysis.
 * The UI released on [wu-sheng/sky-walking-ui](https://github.com/wu-sheng/sky-walking-ui)