diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 9fb59395b..ffba286b7 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,5 +1,8 @@
 name: Service CI
 
+permissions:
+  contents: read
+
 on:
   pull_request:
   push: