diff --git a/sonic-android/README.md b/sonic-android/README.md
index 8a586e2..e159abc 100644
--- a/sonic-android/README.md
+++ b/sonic-android/README.md
@@ -8,7 +8,7 @@
 
 Add VasSonic gradle plugin as a dependency in your module's build.gradle
 ```gradle
-compile 'com.tencent.sonic:sdk:2.0.0-alpha'
+compile 'com.tencent.sonic:sdk:2.0.0-beta'
 ```
 
 ## Implement sonic interface:
diff --git "a/sonic-android/docs/Sonic\346\216\245\345\205\245\346\214\207\345\274\225.md" "b/sonic-android/docs/Sonic\346\216\245\345\205\245\346\214\207\345\274\225.md"
index 54c460a..0a98001 100644
--- "a/sonic-android/docs/Sonic\346\216\245\345\205\245\346\214\207\345\274\225.md"
+++ "b/sonic-android/docs/Sonic\346\216\245\345\205\245\346\214\207\345\274\225.md"
@@ -4,7 +4,7 @@
 在模块的build.gradle文件里面加入
 
 ```
-compile 'com.tencent.sonic:sdk:2.0.0-alpha'
+compile 'com.tencent.sonic:sdk:2.0.0-beta'
 ```
 
 ## 2.代码接入
diff --git a/sonic-android/sample/build.gradle b/sonic-android/sample/build.gradle
index 031f533..8e35cfd 100644
--- a/sonic-android/sample/build.gradle
+++ b/sonic-android/sample/build.gradle
@@ -26,7 +26,7 @@ dependencies {
     })
 
     // compile sdk from jcenter
-     compile 'com.tencent.sonic:sdk:2.0.0-alpha'
+     compile 'com.tencent.sonic:sdk:2.0.0-beta'
 
     // compile sonic-sdk from local path
     // compile project(path: ':sdk')
diff --git a/sonic-android/sdk/build.gradle b/sonic-android/sdk/build.gradle
index ca97572..920f3fd 100644
--- a/sonic-android/sdk/build.gradle
+++ b/sonic-android/sdk/build.gradle
@@ -11,7 +11,7 @@ android {
         minSdkVersion 9
         targetSdkVersion 25
         versionCode 2
-        versionName "2.0.0-alpha"
+        versionName "2.0.0-beta"
 
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
 
@@ -36,7 +36,7 @@ dependencies {
 
 
 // sdk info
-version = "2.0.0-alpha" // sdk version num
+version = "2.0.0-beta" // sdk version num
 group = "com.tencent.sonic" // maven group id for the artifact
 def SITE_URL = "https://github.com/Tencent/VasSonic" // web site url
 def GIT_URL = "https://github.com/Tencent/VasSonic.git" // git url
diff --git a/sonic-iOS/README.md b/sonic-iOS/README.md
index c300318..b03a304 100644
--- a/sonic-iOS/README.md
+++ b/sonic-iOS/README.md
@@ -4,7 +4,7 @@
 [![wiki](https://img.shields.io/badge/Wiki-open-brightgreen.svg)](https://github.com/Tencent/VasSonic/wiki)
 ---
 
-### 2.0.0-alpha support! 
+### 2.0.0-beta support! 
 To integrate VasSonic into your Xcode project using CocoaPods, specify it in your Podfile:
 
 ```lua
@@ -12,7 +12,7 @@ source 'https://github.com/CocoaPods/Specs.git'
 platform :ios, '8.0'
 
 target 'TargetName' do
-    pod 'VasSonic', '2.0.0-alpha'
+    pod 'VasSonic', '2.0.0-beta'
 end
 ```