diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 70b7bad..27c9c19 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,6 +7,9 @@ on:
     branches: [main]
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 env:
   # ── Platform URLs (configure as repo variables: Settings → Variables → Actions) ──
   # Default targets the dev environment; override via vars.BASE_URL /