diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index f3ae803..b93dd5b 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -1,4 +1,6 @@
 name: Tests
+permissions:
+  contents: read
 
 on: [push, pull_request]