diff --git a/.github/workflows/lock.yml b/.github/workflows/lock.yml
index 875e30ab0..46bd134d1 100644
--- a/.github/workflows/lock.yml
+++ b/.github/workflows/lock.yml
@@ -3,7 +3,7 @@ name: 'Lock threads'
 
 on:
   schedule:
-    - cron: '0 * * * *'
+    - cron: '0 3 * * 1'
 
 jobs:
   lock: