diff --git a/app.js b/app.js
index be1349a..5261f57 100644
--- a/app.js
+++ b/app.js
@@ -62,8 +62,8 @@ const peers = io.of('/');
 const createWorker = async () => {
   try {
     worker = await mediasoup.createWorker({
-      rtcMinPort: 2000,
-      rtcMaxPort: 2020,
+      rtcMinPort: process.env.RTC_MIN_PORT,
+      rtcMaxPort: process.env.RTC_MAX_PORT,
     })
     console.log(`[createWorker] worker pid ${worker.pid}`);