diff --git a/src/ProxyChief.js b/src/ProxyChief.js
index 976bd45..8fcadcf 100644
--- a/src/ProxyChief.js
+++ b/src/ProxyChief.js
@@ -31,4 +31,4 @@ app.get("/", function(req, res) {
   );
 });
 
-app.listen(3000);
+app.listen(process.env.PORT);