diff --git a/lib/main.dart b/lib/main.dart
index 2e762dc..5d06445 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -3,7 +3,8 @@ import 'package:flutter/services.dart';
 
 import 'src/App.dart';
 
-main() {
+main() async {
   SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle.light);
+  await SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp]);
   runApp(App());
 }