diff --git a/.github/workflows/security.yml b/.github/workflows/security.yml
index 9dcc510..b1d1d48 100644
--- a/.github/workflows/security.yml
+++ b/.github/workflows/security.yml
@@ -5,6 +5,9 @@ on:
     branches: [ main ]
   pull_request:
 
+permissions:
+  contents: read
+
 jobs:
   trivy:
     runs-on: ubuntu-latest