diff --git a/api/index.js b/api/index.js
index bf522ab..b9ae336 100644
--- a/api/index.js
+++ b/api/index.js
@@ -7,7 +7,7 @@ dotenv.config()
 
 class Config {
   constructor() {
-    this.PORT = process.env.PORT || '8787'
+    this.PORT = process.env.PORT || 8787
     this.API_PREFIX = process.env.API_PREFIX || '/'
     this.API_KEY = process.env.API_KEY || ''
     this.MAX_RETRY_COUNT = process.env.MAX_RETRY_COUNT || 3