diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0504710..0b88923 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.2.1
+
+* update README
+
 ## 0.2.0
 
 * fix ios geetest lib version
diff --git a/README.md b/README.md
index 0610e0b..cf70e7a 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-[![pub package](https://img.shields.io/badge/pub-0.1.8-brightgreen.svg)](https://pub.dartlang.org/packages/geetest_plugin) [![Build Status](https://travis-ci.com/cikichen/flutter_geetest_plugin.svg?branch=master)](https://travis-ci.com/cikichen/flutter_geetest_plugin)
+[![pub package](https://img.shields.io/badge/pub-0.2.1-brightgreen.svg)](https://pub.dartlang.org/packages/geetest_plugin) [![Build Status](https://travis-ci.com/cikichen/flutter_geetest_plugin.svg?branch=master)](https://travis-ci.com/cikichen/flutter_geetest_plugin)
 
 # geetest_plugin
 
@@ -20,7 +20,7 @@ Add this to your package's pubspec.yaml file:
 
 ```
 dependencies:
-  geetest_plugin: ^0.1.8
+  geetest_plugin: ^0.2.1
 ```
 
 ### 2. Install it
diff --git a/ios/geetest_plugin.podspec b/ios/geetest_plugin.podspec
index d4805f2..459a1d5 100644
--- a/ios/geetest_plugin.podspec
+++ b/ios/geetest_plugin.podspec
@@ -3,7 +3,7 @@
 #
 Pod::Spec.new do |s|
   s.name             = 'geetest_plugin'
-  s.version          = '0.2.0'
+  s.version          = '0.2.1'
   s.summary          = 'Geetest(GT3Captcha) Flutter plugin.'
   s.description      = <<-DESC
 Geetest Flutter plugin.
diff --git a/pubspec.yaml b/pubspec.yaml
index 5cd26d8..496d397 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: geetest_plugin
 description: Geetest(GT3Captcha) Flutter plugin(Geetest's CAPTCHA - a user-friendly CAPTCHA powered by AI. Protect your website and mobile apps against bot traffic. Start your free trial now!).
-version: 0.2.0
+version: 0.2.1
 author: SimonChen <admin@ithome.me>
 homepage: https://github.com/cikichen/flutter_geetest_plugin