diff --git a/.github/workflows/merge_comment.yml b/.github/workflows/merge_comment.yml
index 952a85c..1bc61c1 100644
--- a/.github/workflows/merge_comment.yml
+++ b/.github/workflows/merge_comment.yml
@@ -4,6 +4,10 @@ on:
   pull_request:
     types: [closed]
 
+permissions:
+  contents: read
+  pull-requests: write
+
 jobs:
   add-merge-comment:
     runs-on: ubuntu-latest