diff --git a/.github/workflows/python-app.yml b/.github/workflows/python-app.yml
index 4d43097..1c03584 100644
--- a/.github/workflows/python-app.yml
+++ b/.github/workflows/python-app.yml
@@ -26,6 +26,9 @@ on:
   pull_request:
     branches: [master]
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest