diff --git a/samples/express/hello-world.js b/samples/express/hello-world.js
index 60d75a9..8979c75 100644
--- a/samples/express/hello-world.js
+++ b/samples/express/hello-world.js
@@ -3,10 +3,12 @@
  * Express must be installed for this sample to work
  */
 
+var port = Number(process.env.PORT || 3000);
+
 var tropowebapi = require('tropo-webapi');
 var express = require('express');
 
-var app = express.createServer();
+var app = express();
 
 app.post('/', function(req, res){
 	// Create a new instance of the TropoWebAPI object.
@@ -18,5 +20,5 @@ app.post('/', function(req, res){
 });
 
 
-app.listen(8000);
-console.log('Server running on http://0.0.0.0:8000/')
\ No newline at end of file
+app.listen(port);
+console.log('Server running on: ' + port);