diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index af3a2f4..28b2252 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -5,6 +5,9 @@ on:
     branches:
       - '**/**'
 
+permissions:
+  contents: read
+
 jobs:
   tests:
     runs-on: ubuntu-latest