diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 648719ce0..7857d07a3 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -10,6 +10,9 @@ on:
       - develop
       - main
 
+permissions:
+  contents: read
+
 jobs:
   ci:
     runs-on: ubuntu-latest