diff --git a/.github/workflows/image-build.yml b/.github/workflows/image-build.yml
index ea5b67d..1577c92 100644
--- a/.github/workflows/image-build.yml
+++ b/.github/workflows/image-build.yml
@@ -4,6 +4,8 @@ on:
   push:
     branches:
       - master
+  schedule:
+    - cron: '0 0 * * *' # 每天的 0 点执行
 
 jobs:
   build: