diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 508f249..cba36b3 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -4,6 +4,8 @@ on:
     branches:
       - main
   pull_request:
+permissions:
+  contents: read
 jobs:
   test:
     runs-on: ubuntu-latest