diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9052950..c9ca82d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,6 +6,9 @@ on:
     pull_request:
         branches: [main, next]
 
+permissions:
+    contents: read
+
 jobs:
     test:
         runs-on: ubuntu-latest