diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 3c276f475..ae5b63609 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -2,7 +2,7 @@ name: Check format
 run-name: Checking format
 
 on:
-  - pull_request_target
+  - pull_request
 
 jobs:
   install:
@@ -46,7 +46,9 @@ jobs:
           echo "format-check-result=$?" >> $GITHUB_OUTPUT
       
       - name: Output formatting error
-        if: steps.prettier-check.outputs.format-check-result == 1
+        if: |
+          steps.prettier-check.outputs.format-check-result == 1 &&
+          ${{ github.event.pull_request.head.repo.full_name == 'OffchainLabs/arbitrum-docs' }}
         uses: actions/github-script@v6
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}