diff --git a/.github/workflows/external-contributors.yml b/.github/workflows/external-contributors.yml
index 294f8fe10af7..3682aaa88e2a 100644
--- a/.github/workflows/external-contributors.yml
+++ b/.github/workflows/external-contributors.yml
@@ -9,8 +9,12 @@ on:
 jobs:
   external_contributor:
     name: External Contributors
+    permissions:
+      pull-requests: write
+      contents: write
     runs-on: ubuntu-20.04
     if: |
+      github.event.pull_request.merged == true &&
       github.event.pull_request.author_association != 'COLLABORATOR'
       && github.event.pull_request.author_association != 'MEMBER'
       && github.event.pull_request.author_association != 'OWNER'