diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 20942e964..eac036882 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -3,6 +3,9 @@ name: Unit Tests
 on:
   pull_request
 
+permissions:
+  contents: read
+
 jobs:
   run-tests:
     runs-on: ubuntu-latest