diff --git a/.github/workflows/lock.yml b/.github/workflows/lock.yml
index 7097c1c87c..223783df6a 100644
--- a/.github/workflows/lock.yml
+++ b/.github/workflows/lock.yml
@@ -3,7 +3,7 @@ name: Lock threads
 on:
   # Daily
   schedule:
-    - cron: '0 * * * *'
+    - cron: '0 0 * * *'
   # Manual trigger
   workflow_dispatch:
     inputs: