diff --git a/.gitea/workflows/pr-auto-scan.yml b/.gitea/workflows/pr-auto-scan.yml
index 8621ce69e..32174b2b0 100644
--- a/.gitea/workflows/pr-auto-scan.yml
+++ b/.gitea/workflows/pr-auto-scan.yml
@@ -3,7 +3,7 @@ name: PR Auto Scan
 # 作为短作业模式的兜底，防止事件驱动遗漏
 on:
   schedule:
-    - cron: "*/5 * * * *"  # 每5分钟扫描一次
+    - cron: "*/15 * * * *"  # 每15分钟扫描一次
   workflow_dispatch:
 
 permissions: