diff --git a/.github/workflows/bench.yml b/.github/workflows/bench.yml
index 0fe6fac..d41777e 100644
--- a/.github/workflows/bench.yml
+++ b/.github/workflows/bench.yml
@@ -3,6 +3,7 @@ name: benchmark pull requests
 jobs:
   runBenchmark:
     name: run benchmark
+    permissions: write-all
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3