diff --git a/.github/workflows/python-tests.yaml b/.github/workflows/python-tests.yaml
index bd63159..b6dd871 100644
--- a/.github/workflows/python-tests.yaml
+++ b/.github/workflows/python-tests.yaml
@@ -1,5 +1,7 @@
 name: python tests
 run-name: python tests
+permissions:
+  contents: read
 
 on:
   push: