diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7c9618a..9078f7a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,6 +9,9 @@ on:
   pull_request:
     branches: [main]
 
+permissions:
+  contents: read
+
 jobs:
   lint:
     runs-on: ubuntu-latest