diff --git a/.github/workflows/lock-issue.yml b/.github/workflows/lock-issue.yml
index 6a9aed9..9b3067d 100644
--- a/.github/workflows/lock-issue.yml
+++ b/.github/workflows/lock-issue.yml
@@ -30,6 +30,9 @@ jobs:
   action:
     runs-on: ubuntu-latest
     steps:
+# Make sure to set the BOT_GITHUB_TOKEN secret in your repository settings.
+# This secret should contain a valid GitHub token.
+# The workflow will fail with a 'Bad credentials' error if the token is invalid.
       - uses: dessant/lock-threads@v4
         with:
           github-token: ${{ secrets.BOT_GITHUB_TOKEN }}