diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index b784e43..692e8b3 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -1,5 +1,7 @@
 name: CI
 on: [push]
+permissions:
+  contents: read
 jobs:
   build:
     runs-on: ubuntu-latest