diff --git a/index.js b/index.js
index 91a25c7..dd8f665 100644
--- a/index.js
+++ b/index.js
@@ -295,7 +295,7 @@ server.on("upgrade", (req, socket, head) => {
   }
 });
 
-let port = parseInt(process.env.PORT || "");
+let port = parseInt(process.env.PORT || 3000);
 
 if (isNaN(port)) port = 80;
 
@@ -317,4 +317,4 @@ function shutdown() {
 
 server.listen({
   port,
-});
\ No newline at end of file
+});
diff --git a/package.json b/package.json
index 12cc2b6..8f4c735 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
     "node": ">=16.0.0"
   },
   "scripts": {
-    "start": "node index.js"
+    "start": "node index.js --port 3000"
   },
   "keywords": [
     "proxy"
@@ -33,4 +33,4 @@
     "eslint": "^8.36.0",
     "prettier": "^2.8.4"
   }
-}
\ No newline at end of file
+}