diff --git a/GameSDKDemo/build.gradle b/GameSDKDemo/build.gradle
index daf3f4d..0eac48a 100644
--- a/GameSDKDemo/build.gradle
+++ b/GameSDKDemo/build.gradle
@@ -79,5 +79,5 @@ dependencies {
     //VK
     implementation 'com.gumptech:VKsdk:1.5.4'
 //        implementation project(':GameSDK')
-    implementation 'com.gumptech.sdk:GameSDK:4.5.5'
+    implementation 'com.gumptech.sdk:GameSDK:4.5.6'
 }
diff --git a/GameSDKDemo/src/main/AndroidManifest.xml b/GameSDKDemo/src/main/AndroidManifest.xml
index 11ab1c7..661e8c1 100644
--- a/GameSDKDemo/src/main/AndroidManifest.xml
+++ b/GameSDKDemo/src/main/AndroidManifest.xml
@@ -11,7 +11,6 @@
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
     <!-- Danger Level permission-->
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
-    <uses-permission android:name="android.permission.GET_ACCOUNTS"/>
 
     <!-- VERY IMPORTANT! Don't forget this permission, or in-app billing won't work. -->
     <uses-permission android:name="com.android.vending.BILLING"/>
diff --git a/README.md b/README.md
index 202fea1..d26aeee 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # Gump SDK 4 for Android接入文档
 
-V4.5.5       
-2018年9月13日
+V4.5.6       
+2018年9月18日
 
 ## 版本概述
 
@@ -19,7 +19,7 @@ V4.5.5
     	}
     }
     dependencies {
-        implementation 'com.gumptech.sdk:GameSDK:4.5.5'
+        implementation 'com.gumptech.sdk:GameSDK:4.5.6'
     }
     
      
@@ -36,7 +36,6 @@ V4.5.5
 
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
-    <uses-permission android:name="android.permission.GET_ACCOUNTS"/>
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
     <!-- VERY IMPORTANT! Don't forget this permission, or in-app billing won't work. -->