diff --git a/.github/workflows/cron.yml b/.github/workflows/cron.yml
index 8ff477ccf66daa226d93f93356f612fdeb13c6ab..61eb47b01ce8114849f64ebc4b0b3bd58d435d8d 100644
--- a/.github/workflows/cron.yml
+++ b/.github/workflows/cron.yml
@@ -11,6 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     permissions:
       issues: write
+      pull-requests: write
     steps:
       - uses: actions/stale@v9
         with: