diff --git a/README.md b/README.md
index 23bb566..56295d5 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,13 @@ Visit `localhost:3000` with web browser.
 
 ## serve app with local changes
 
-    $ docker run --rm -it -p 3000:3000 -v $PWD:/opt/app mojo_app
+### install dependencies
+
+    $ docker run --rm -v $PWD:/opt/app --entrypoint carton mojo_app install
+
+### start the server
+
+    $ docker run --rm -v $PWD:/opt/app -p 3000:3000 mojo_app
 
 Visit `localhost:3000` with web browser. Changes should load when you reload
 the page, without having to restart the server.