diff --git a/README.md b/README.md
index 13f39b5..c123770 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,11 @@
 ## @bytedo/gzip
 > 浏览器端的gzip库, fork于[pako](https://github.com/nodeca/pako), 仅调整语法为esm, 并只保留gzip的导出。
 
+### 版本同步状态: 
+
+pako: ![pako](https://img.shields.io/npm/v/pako.svg)
+@bytedo/gzip: ![@bytedo/gzip](https://img.shields.io/npm/v/@bytedo/gzip.svg)
+
 
 ### 安装&使用
 
@@ -20,7 +25,7 @@ import { gzip , ungzip } from '//jscdn.ink/@bytedo/gzip/latest/index.js'
 
 let res = gzip('hello world')  // return Uint8Array object
 
-let txt = ungzip(res) // hello world
+let txt = ungzip(res) // return Uint8Array object
 
 ```