diff --git a/src/main/java/club/joylink/xiannccda/alert/core/AlertManager.java b/src/main/java/club/joylink/xiannccda/alert/core/AlertManager.java
index 56cd86f..2f52c03 100644
--- a/src/main/java/club/joylink/xiannccda/alert/core/AlertManager.java
+++ b/src/main/java/club/joylink/xiannccda/alert/core/AlertManager.java
@@ -73,7 +73,7 @@ public class AlertManager extends EventEmitter {
   public synchronized void taskStart() {
     if (!started) {
       started = true;
-      Executor.scheduleAtFixedRate(() ->
+      Executor.scheduleWithFixedDelay(() ->
               amtMap.values().forEach(alertMonitoringTask -> {
                 try {
                   alertMonitoringTask.run();