diff --git a/apps/api/src/billing/providers/binance.provider.ts b/apps/api/src/billing/providers/binance.provider.ts
index e1a3fe5..a262fc0 100644
--- a/apps/api/src/billing/providers/binance.provider.ts
+++ b/apps/api/src/billing/providers/binance.provider.ts
@@ -11,11 +11,11 @@ export class BinanceProvider {
   constructor(private configService: ConfigService) {}
 
   private get apiKey(): string {
-    return this.configService.get<string>('BINANCE_PAY_API_KEY');
+    return this.configService.get<string>('BINANCE_PAY_API_KEY') || '';
   }
 
   private get secretKey(): string {
-    return this.configService.get<string>('BINANCE_PAY_SECRET_KEY');
+    return this.configService.get<string>('BINANCE_PAY_SECRET_KEY') || '';
   }
 
   /**