diff --git a/android/gradle.properties b/android/gradle.properties
index 9ff93b6a299be10e601d7ea42651ee4f25bbca39..7ac7a94103db4ce4fba81ef714fa2ff900b4f78f 100644
--- a/android/gradle.properties
+++ b/android/gradle.properties
@@ -2,5 +2,5 @@ org.gradle.jvmargs=-Xmx1536M
 android.enableR8=true
 android.useAndroidX=true
 android.enableJetifier=true
-app.versionName=1.0.2
-app.versionCode=3
+app.versionName=1.0.3
+app.versionCode=4
diff --git a/lib/cpu_level_page.dart b/lib/cpu_level_page.dart
index af76d83f7da5670117fe1acdd7f29b81b15d37b5..05a5a71b86a3161b0a4da03f6a7f21841755e0b0 100644
--- a/lib/cpu_level_page.dart
+++ b/lib/cpu_level_page.dart
@@ -26,7 +26,7 @@ class CpuLevelPage extends StatelessWidget {
                 '☺️ FACILE',
                 style: Theme.of(context)
                     .textTheme
-                    .display2
+                    .display1
                     .copyWith(color: Colors.black),
               ),
               onPressed: () {
@@ -48,7 +48,7 @@ class CpuLevelPage extends StatelessWidget {
                 'πŸ€” DIFFICILE',
                 style: Theme.of(context)
                     .textTheme
-                    .display2
+                    .display1
                     .copyWith(color: Colors.white),
               ),
               onPressed: () {
@@ -70,7 +70,7 @@ class CpuLevelPage extends StatelessWidget {
                 '🀯 TRES DIFFICILE',
                 style: Theme.of(context)
                     .textTheme
-                    .display2
+                    .display1
                     .copyWith(color: Colors.white),
               ),
               onPressed: () {
diff --git a/lib/home_page.dart b/lib/home_page.dart
index 3940ea99164ee43b90f7cf5fd3e3a3a6e82545a5..b1b865ad14e18a341db249e082d414b761166903 100644
--- a/lib/home_page.dart
+++ b/lib/home_page.dart
@@ -23,7 +23,7 @@ class HomePage extends StatelessWidget {
                 'πŸ§‘ 2 JOUEURS πŸ§‘',
                 style: Theme.of(context)
                     .textTheme
-                    .display2
+                    .display1
                     .copyWith(color: Colors.white),
               ),
               onPressed: () {
@@ -43,7 +43,7 @@ class HomePage extends StatelessWidget {
                 'πŸ§‘ 1 JOUEUR πŸ€–',
                 style: Theme.of(context)
                     .textTheme
-                    .display2
+                    .display1
                     .copyWith(color: Colors.white),
               ),
               onPressed: () {
@@ -58,11 +58,12 @@ class HomePage extends StatelessWidget {
             ),
             FlatButton(
               color: Colors.white,
+              padding: EdgeInsets.all(15),
               child: Text(
-                'DEMO',
+                'πŸ€– DEMO πŸ€–',
                 style: Theme.of(context)
                     .textTheme
-                    .display2
+                    .display1
                     .copyWith(color: Colors.black),
               ),
               onPressed: () {
diff --git a/lib/main.dart b/lib/main.dart
index f6f577724878ebdf328a70c81b4800424326bb1f..19115a1ab134e8abfe9b50d25aa53f337d4720b2 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -1,9 +1,14 @@
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:puissance4/cpu_level_page.dart';
 import 'package:puissance4/home_page.dart';
 import 'package:puissance4/match_page.dart';
 
-void main() => runApp(MyApp());
+void main() {
+  WidgetsFlutterBinding.ensureInitialized();
+  SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp])
+      .then((value) => runApp(MyApp()));
+}
 
 class MyApp extends StatelessWidget {
   @override