diff --git a/.github/workflows/pr_check.yml b/.github/workflows/pr_check.yml
index c88ed1e7b..78fc64b81 100644
--- a/.github/workflows/pr_check.yml
+++ b/.github/workflows/pr_check.yml
@@ -1,4 +1,6 @@
 name: 'Pre-check on PR'
+permissions:
+  contents: read
 
 on:
   workflow_dispatch: