diff --git a/.github/workflows/blank.yml b/.github/workflows/blank.yml
index c9a9b0a57..821670cc9 100644
--- a/.github/workflows/blank.yml
+++ b/.github/workflows/blank.yml
@@ -6,7 +6,7 @@ on:
     branches:
       - main
   schedule:   
-    - cron: '0 * * * *'   #国际标准时间，北京时间+8，即下午1点钟
+    - cron: '0 * */30 * *'   #国际标准时间，北京时间+8，即下午1点钟