diff --git a/.github/workflows/lock.yml b/.github/workflows/lock.yml
index bb7abb8a1e4289c7234fdfb91c45ea3a2f89e5a8..ff03d787a11fd51872ef3ce9b4ae36b57a6f515b 100644
--- a/.github/workflows/lock.yml
+++ b/.github/workflows/lock.yml
@@ -4,9 +4,14 @@ on:
   schedule:
     - cron: '0 0 * * *'
 
+permissions: {}
+
 jobs:
   lock:
     runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
     steps:
       - uses: dessant/lock-threads@v2
         with: