diff --git a/src/main/java/com/example/caseData/service/UserService.java b/src/main/java/com/example/caseData/service/UserService.java
index 4244470..a441395 100644
--- a/src/main/java/com/example/caseData/service/UserService.java
+++ b/src/main/java/com/example/caseData/service/UserService.java
@@ -381,7 +381,7 @@ public class UserService {
             params.put("mobile", mobile);
             params.put("platform", appConfig.getPlatform());
             params.put("timestamp", System.currentTimeMillis() / 1000);
-            String signature = Sha256Util.getSign(params, appConfig.getAccessToken());
+            String signature = Sha256Util.getSign(params, appConfig.getSecretKey());
             params.put("signature", signature);
             String result = HttpUtil.post(appConfig.getApiUrl() + "/hcp/mobileLogin", params);
             log.info(result);