diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
index b8aa644..b1e7da3 100644
--- a/.github/workflows/pull_request.yml
+++ b/.github/workflows/pull_request.yml
@@ -1,4 +1,5 @@
 name: Pull Request
+permissions: read-all
 on:
   pull_request:
     branches: