diff --git a/GameSDKDemo/build.gradle b/GameSDKDemo/build.gradle
index 918ef25..26646b1 100644
--- a/GameSDKDemo/build.gradle
+++ b/GameSDKDemo/build.gradle
@@ -91,6 +91,6 @@ dependencies {
     implementation 'com.android.support:design:27.1.1'
 //    implementation project(':GameSDK')
 //    implementation project(':IAP5Helper')
-    implementation 'com.gumptech.sdk:GameSDK:4.7.1'
+    implementation 'com.gumptech.sdk:GameSDK:4.7.2'
 //    implementation 'com.gumptech.sdk:SamsungIAP:5.1.1'
 }
diff --git a/GameSDKDemo/src/main/java/com/gumptech/sdk/demo/MainActivity.java b/GameSDKDemo/src/main/java/com/gumptech/sdk/demo/MainActivity.java
index bba4002..750f4fe 100644
--- a/GameSDKDemo/src/main/java/com/gumptech/sdk/demo/MainActivity.java
+++ b/GameSDKDemo/src/main/java/com/gumptech/sdk/demo/MainActivity.java
@@ -108,13 +108,6 @@ public class MainActivity extends AppCompatActivity implements PurchaseCallback
                         GumpSDK.pay(MainActivity.this, payInfo, MainActivity.this);
                     }
                 });
-//                Bundle payInfo = new Bundle();
-//                payInfo.putString("product", "test");
-//                payInfo.putFloat("amount", 0.1f);
-//                payInfo.putString("extraInfo", "This is demo!");
-//                payInfo.putString("serverId", "s1");
-//                payInfo.putString("roleId", "100123");
-//                payInfo.putString("currency", "THB");
                 submitFragment.show(getSupportFragmentManager(), "pay");
             }
         });
@@ -129,14 +122,6 @@ public class MainActivity extends AppCompatActivity implements PurchaseCallback
                     }
                 });
                 submitFragment.show(getSupportFragmentManager(), "iap");
-//                Bundle payInfo = new Bundle();
-//                payInfo.putString("product", "dwe");
-//                payInfo.putFloat("amount", 0.1f);
-//                payInfo.putString("extraInfo", "This is demo!");
-//                payInfo.putString("serverId", serverId);
-//                payInfo.putString("roleId", "100123");
-//                payInfo.putString("currency", "THB");
-//                GumpSDK.iap(MainActivity.this, payInfo, MainActivity.this);
             }
         });
 
diff --git a/README.md b/README.md
index bf3987d..1ee3693 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,8 @@
 # Gump SDK 4 for Android接入文档
 
 
-V4.7.1       
-2019年03月19日
+V4.7.2       
+2019年06月11日
 
 
 ## 版本概述
@@ -21,7 +21,7 @@ V4.7.1
     	}
     }
     dependencies {
-        implementation 'com.gumptech.sdk:GameSDK:4.7.1'
+        implementation 'com.gumptech.sdk:GameSDK:4.7.2'
 
     }