diff --git a/.github/workflows/docs.yaml b/.github/workflows/docs.yaml
index 027ba1d2..4d76a997 100644
--- a/.github/workflows/docs.yaml
+++ b/.github/workflows/docs.yaml
@@ -64,7 +64,10 @@ jobs:
 
       - name: Publish PR docs in a subdirectory
         # runs when a PR is opened or updated, but not when merged into main
-        if: github.event_name == 'pull_request' && github.base_ref == 'main'
+        if: >-
+          github.event_name == 'pull_request' &&
+          github.base_ref == 'main' &&
+          github.event.pull_request.head.repo.full_name == github.repository
         uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
@@ -73,7 +76,10 @@ jobs:
 
       - name: Create comment
         # runs when a PR is opened or updated, but not when merged into main
-        if: github.event_name == 'pull_request' && github.base_ref == 'main'
+        if: >-
+          github.event_name == 'pull_request' &&
+          github.base_ref == 'main' &&
+          github.event.pull_request.head.repo.full_name == github.repository
         uses: marocchino/sticky-pull-request-comment@v2
         with:
           header: "Documentation Website"