diff --git a/src/environment.ts b/src/environment.ts
index 03beaf3..1a7279b 100644
--- a/src/environment.ts
+++ b/src/environment.ts
@@ -7,9 +7,9 @@ dotenv.config();
 dotenv.config({path: '.env.local', override: true});
 
 export const environment = {
-	port: process.env['PORT'] ?? 3000,
+	port: process.env['PORT'] || 3000,
 	production: !process.env.NODE_ENV || ['prod', 'production'].includes(process.env.NODE_ENV.toLowerCase()),
-	tickers: process.env['TICKERS']?.split(',') ?? [],
+	tickers: process.env['TICKERS']?.split(',') || [],
 	token: process.env['TOKEN'],
 	version: packageJson.version
 }