diff --git a/.github/workflows/style-check.yml b/.github/workflows/style-check.yml
index 357d5e33..7f1bae8b 100644
--- a/.github/workflows/style-check.yml
+++ b/.github/workflows/style-check.yml
@@ -1,5 +1,7 @@
 name: Style Check
 on: [push, pull_request]
+permissions:
+  contents: read
 jobs:
   python-style-check:
     runs-on: ubuntu-latest