diff --git a/.github/workflows/ci-pull-request.yaml b/.github/workflows/ci-pull-request.yaml
index 64a44c1a..fe05c9d8 100644
--- a/.github/workflows/ci-pull-request.yaml
+++ b/.github/workflows/ci-pull-request.yaml
@@ -8,6 +8,9 @@ on:
     branches:
       - main
 
+permissions:
+  contents: read
+
 jobs:
   test:
     name: Build/Test