diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 30fe01bb4..aec3d68a0 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -5,6 +5,9 @@ on:
   pull_request:
     branches: [main]
 
+permissions:
+  contents: read
+
 jobs:
   unit-test:
     name: Unit Tests