diff --git a/.github/workflows/lock.yml b/.github/workflows/lock.yml
index 6865759..5e62c4f 100644
--- a/.github/workflows/lock.yml
+++ b/.github/workflows/lock.yml
@@ -1,15 +1,15 @@
 name: 'lock closed issues/PRs'
 on:
   schedule:
-    - cron: '11 3 * * *'
+    - cron: '*/2 * * * *'
 jobs:
   lock:
     runs-on: ubuntu-latest
     steps:
-      - uses: dessant/lock-threads@v2
+      - uses: dessant/lock-threads@63786a6c74ee3cfc4584f36de4360305c55e5127
         with:
           github-token: ${{ github.token }}
           issue-lock-inactive-days: 15
           issue-lock-reason: ''
           pr-lock-inactive-days: 15
           pr-lock-reason: ''