diff --git a/.github/workflows/pre-commit-autoupdate.yml b/.github/workflows/pre-commit-autoupdate.yml
index 924f4c0..40d8c97 100644
--- a/.github/workflows/pre-commit-autoupdate.yml
+++ b/.github/workflows/pre-commit-autoupdate.yml
@@ -1,9 +1,9 @@
 name: Pre-commit auto-update
 
 on:
-  # every day at midnight
+  # every month
   schedule:
-    - cron: "0 0 * * *"
+    - cron: "0 0 1 * *"
   # on demand
   workflow_dispatch: