diff --git a/.github/workflows/linter.yml b/.github/workflows/linter.yml
index b723e3a..728181e 100644
--- a/.github/workflows/linter.yml
+++ b/.github/workflows/linter.yml
@@ -2,6 +2,8 @@ name: Test (linter/formatter/coverage)
 
 on: [push]
 
+permissions:
+  contents: read
 jobs:
   build:
     runs-on: ubuntu-latest