diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index 81c4b63..4238a63 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -11,6 +11,9 @@ defaults:
   run:
     shell: bash
 
+permissions:
+  contents: read
+
 jobs:
   test:
     runs-on: ubuntu-latest