diff --git a/server.js b/server.js
index 7f30810..275cb45 100644
--- a/server.js
+++ b/server.js
@@ -10,6 +10,6 @@ app.use('/people', peopleController);
 
 postgres.connect();
 
-app.listen(3000, () => {
+app.listen(process.env.PORT || 3000, () => {
     console.log('listening');
 })