diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5d8b9b5..88bfda4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,6 +14,9 @@ env:
   OUTPUT_NAME: Purse
   BUILD_PROJECT: package.project.json
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest