diff --git a/.github/workflows/backwards-compatibility-commenter.yml b/.github/workflows/backwards-compatibility-commenter.yml
index c2d5a688df6..6de2997bc3d 100644
--- a/.github/workflows/backwards-compatibility-commenter.yml
+++ b/.github/workflows/backwards-compatibility-commenter.yml
@@ -7,6 +7,9 @@ on:
       - 'ace-modes.d.ts'
       - 'ace-extensions.d.ts'
 
+permissions:
+  pull-requests: write
+
 jobs:
   comment:
     runs-on: ubuntu-latest