diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2d3dc20..742012c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -4,6 +4,8 @@ on:
     branches: [main]
   pull_request:
     branches: [main]
+permissions:
+  contents: read
 jobs:
   registry:
     runs-on: ubuntu-latest