diff --git a/.github/workflows/main-guard.yml b/.github/workflows/main-guard.yml
index e554d1a..1bed7a1 100644
--- a/.github/workflows/main-guard.yml
+++ b/.github/workflows/main-guard.yml
@@ -4,6 +4,8 @@ on:
   pull_request:
     branches: ["main"]
 
+permissions: {}
+
 jobs:
   develop-only:
     name: develop-only