diff --git a/.github/workflows/pythonpackage.yml b/.github/workflows/pythonpackage.yml
index db8baf1..f3ff798 100644
--- a/.github/workflows/pythonpackage.yml
+++ b/.github/workflows/pythonpackage.yml
@@ -2,6 +2,9 @@ name: Test package
 
 on: [push, pull_request]
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ${{ matrix.os }}