diff --git a/src/main/java/com/gzzn/omms/msgexchangeapi/scheduled/CminmsgsHisScheduled.java b/src/main/java/com/gzzn/omms/msgexchangeapi/scheduled/CminmsgsHisScheduled.java
index 960d8af2..c32b6d35 100644
--- a/src/main/java/com/gzzn/omms/msgexchangeapi/scheduled/CminmsgsHisScheduled.java
+++ b/src/main/java/com/gzzn/omms/msgexchangeapi/scheduled/CminmsgsHisScheduled.java
@@ -2,7 +2,6 @@ package com.gzzn.omms.msgexchangeapi.scheduled;
 
 import java.util.Date;
 import java.util.List;
-import java.util.stream.Collector;
 import java.util.stream.Collectors;
 
 import org.slf4j.Logger;