diff --git a/server/src/modules/messages/logs.service.ts b/server/src/modules/messages/logs.service.ts
index 9b31ceb..732a14d 100644
--- a/server/src/modules/messages/logs.service.ts
+++ b/server/src/modules/messages/logs.service.ts
@@ -18,7 +18,7 @@ export class LogsService {
   ) {}
 
   async saveLog(data: SendLogDto) {
-    const thirtyMinutesAgo = new Date(Date.now() - 30 * 60 * 1000);
+    const oneHourAgo = new Date(Date.now() - 60 * 60 * 1000);
 
     // 1. Check nếu đã có log trùng trong 30 phút
     const existingLog = await this.repo
@@ -26,7 +26,7 @@ export class LogsService {
       .where('log.message = :message', { message: data.message })
       .andWhere('log.type = :type', { type: data.type })
       .andWhere('log.created_at > :time', {
-        time: thirtyMinutesAgo.toISOString(),
+        time: oneHourAgo.toISOString(),
       }) // convert sang ISO
       .getOne();