diff --git a/.github/workflows/bench.yml b/.github/workflows/bench.yml
index c89de19..eea9f3f 100644
--- a/.github/workflows/bench.yml
+++ b/.github/workflows/bench.yml
@@ -26,6 +26,10 @@ jobs:
     environment:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}
+    permissions:
+      contents: read
+      pages: write
+      id-token: write
     name: deploy pages
     runs-on: ubuntu-latest
     needs: bench