diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c222ba0..98179f7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,6 +1,9 @@
 name: Robo-Reviewer (CI)
 on: [pull_request]
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest