diff --git a/README.md b/README.md
index b5b2950..86725cd 100644
--- a/README.md
+++ b/README.md
@@ -36,3 +36,6 @@ npm run build
 You can preview the production build with `npm run preview`.
 
 > To deploy your app, you may need to install an [adapter](https://svelte.dev/docs/kit/adapters) for your target environment.
+
+## Collaboration
+The main branch is locked, please push to other branch then sen merge req.