diff --git a/.github/workflows/auto-update.yml b/.github/workflows/auto-update.yml
index f86bbeb2..9d6a4737 100644
--- a/.github/workflows/auto-update.yml
+++ b/.github/workflows/auto-update.yml
@@ -1,6 +1,8 @@
 name: auto-update
 on:
   workflow_dispatch:
+  schedule:
+    - cron: '0 0 * * *'
 jobs:
   update-guide:
     runs-on: ubuntu-latest