diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5af3863..36d6c50 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,5 +1,7 @@
 name: ci
 on: [push, pull_request]
+permissions:
+  contents: read
 
 jobs:
   build: