diff --git a/Demo/app/src/main/java/com/tencent/qcloud/tim/demo/signature/GenerateTestUserSig.java b/Demo/app/src/main/java/com/tencent/qcloud/tim/demo/signature/GenerateTestUserSig.java
index a467277d..7144ecb0 100644
--- a/Demo/app/src/main/java/com/tencent/qcloud/tim/demo/signature/GenerateTestUserSig.java
+++ b/Demo/app/src/main/java/com/tencent/qcloud/tim/demo/signature/GenerateTestUserSig.java
@@ -41,7 +41,7 @@ public class GenerateTestUserSig {
      * You can view your SDKAppID after creating an application in the [Tencent Cloud IM console](https://console.intl.cloud.tencent.com/im).
      * SDKAppID uniquely identifies a Tencent Cloud account.
      */
-    public static final int SDKAPPID = 0;
+    public static final int SDKAPPID = 20017176;
 
     /**
      * Signature validity period, which should not be set too short
@@ -61,7 +61,7 @@ public class GenerateTestUserSig {
      * Note: this method is for testing only. Before commercial launch, please migrate the UserSig calculation code and key to your backend server to prevent key disclosure and traffic stealing.
      * Reference: https://intl.cloud.tencent.com/document/product/1047/34385
      */
-    private static final String SECRETKEY = "";
+    private static final String SECRETKEY = "642596b05da5c51af34146e8ba63d1e24fdbb2421e78458ba5a242ed71ee8dac";
 
     /**
      * Calculate UserSig