diff --git a/.github/workflows/cron.yml b/.github/workflows/cron.yml
index 8df1ebc..9337d6e 100644
--- a/.github/workflows/cron.yml
+++ b/.github/workflows/cron.yml
@@ -2,7 +2,7 @@ name: Update submodules
 
 on:
   schedule:
-    - cron: "*/5 * * * *"
+    - cron: "0 0 * * *"
 
 jobs:
   submodule-update: