diff --git a/src/main/java/com/biutag/supervision/job/Job.java b/src/main/java/com/biutag/supervision/job/Job.java
index c03cd77..3392752 100644
--- a/src/main/java/com/biutag/supervision/job/Job.java
+++ b/src/main/java/com/biutag/supervision/job/Job.java
@@ -62,7 +62,7 @@ public class Job {
     }
 
     // 每日04:00更新基础数据
-    @Scheduled(cron = "0 30 21 * * ?")
+    @Scheduled(cron = "0 0 3 * * ?")
     public void updateBaseData() {
                    // 0秒