diff --git a/.github/workflows/pull-request.yaml b/.github/workflows/pull-request.yaml
index 6c31460..9b202ad 100644
--- a/.github/workflows/pull-request.yaml
+++ b/.github/workflows/pull-request.yaml
@@ -1,5 +1,7 @@
 ---
 name: pull request
+permissions:
+  contents: read
 
 on:
   pull_request: