diff --git a/.github/workflows/update-flake-lock.yml b/.github/workflows/update-flake-lock.yml
index 9ee4e5eee..9d589223e 100644
--- a/.github/workflows/update-flake-lock.yml
+++ b/.github/workflows/update-flake-lock.yml
@@ -2,7 +2,7 @@ name: update-flake-lock
 on:
   workflow_dispatch: # allows manual triggering
   schedule:
-    - cron: '0 0 * * 0' # runs weekly on Sunday at 00:00
+    - cron: '0 0 1 * *' # runs weekly on Sunday at 00:00
 
 jobs:
   lockfile: