diff --git a/.github/workflows/unit.yml b/.github/workflows/unit.yml
index f99662a..01a469e 100644
--- a/.github/workflows/unit.yml
+++ b/.github/workflows/unit.yml
@@ -6,6 +6,9 @@ on:
   pull_request:
     branches: [main]
 
+permissions:
+  contents: read
+
 jobs:
   unit-tests:
     runs-on: ubuntu-latest