diff --git a/src/main/java/com/biutag/supervision/job/MailBoxCaptureJob.java b/src/main/java/com/biutag/supervision/job/MailBoxCaptureJob.java
index b39e901..8251b99 100644
--- a/src/main/java/com/biutag/supervision/job/MailBoxCaptureJob.java
+++ b/src/main/java/com/biutag/supervision/job/MailBoxCaptureJob.java
@@ -39,9 +39,9 @@ public class MailBoxCaptureJob {
 
     /**
      * 阶段2：同步涉及人和核查附件
-     * 每天凌晨4点执行
+     * 1小时一次
      */
-    @Scheduled(cron = "0 0 4 * * ?")
+    @Scheduled(cron = "0 0 * * * ?")
     public void syncBlameAndFilesForCompletedMails() {
         LocalDateTime start = LocalDate.now().minusDays(1).atStartOfDay();
         LocalDateTime end = LocalDate.now().atStartOfDay();
@@ -50,9 +50,9 @@ public class MailBoxCaptureJob {
 
     /**
      * 阶段3：同步延期信息（初核工作开展情况、初核附件）
-     * 4小时一次
+     * 1小时一次
      */
-    @Scheduled(cron = "0 0 */4 * * ?")
+    @Scheduled(cron = "0 0 * * * ?")
     public void syncExtension() {
         SyncExtensionRequestDto syncExtensionRequestDto = new SyncExtensionRequestDto();
         mailBoxCaptureService.syncExtension(syncExtensionRequestDto);
diff --git a/src/main/resources/application-prod.yml b/src/main/resources/application-prod.yml
index d565c33..9bdcba8 100644
--- a/src/main/resources/application-prod.yml
+++ b/src/main/resources/application-prod.yml
@@ -63,6 +63,8 @@ spring:
           username: root
           password: ip12341234
       druid:
+        keep-alive: true                       # 启用连接保活（主动发送心跳）
+        keep-alive-between-time-millis: 600000 # 保活检测间隔 10 分钟（务必小于 2 小时）
         min-evictable-idle-time-millis: 300000
         test-on-borrow: false
         test-on-return: false