diff --git a/.forgejo/workflows/update-flake-lock.yml b/.forgejo/workflows/update-flake-lock.yml
index be8a2a1d..653beb41 100644
--- a/.forgejo/workflows/update-flake-lock.yml
+++ b/.forgejo/workflows/update-flake-lock.yml
@@ -2,7 +2,8 @@ name: update-flake-lock
 run-name: ${{ github.actor }} - update-flake-lock
 on:
   schedule:
-    - cron: '* * * * *'
+    - cron: '0 0 * * 6'
+    # “At 00:00 on Saturday.”
 jobs:
   update-flake-lock:
     runs-on: docker