diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 74e9178..8205685 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,6 +10,9 @@ on:
     branches:
       - main
 
+permissions:
+  contents: read
+
 jobs:
   lint:
     runs-on: ubuntu-latest