diff --git a/apps/mobile/packages/core_localization/lib/src/data/repositories_impl/locale_repository_impl.dart b/apps/mobile/packages/core_localization/lib/src/data/repositories_impl/locale_repository_impl.dart
index 4d8e73a5..f3bd8d69 100644
--- a/apps/mobile/packages/core_localization/lib/src/data/repositories_impl/locale_repository_impl.dart
+++ b/apps/mobile/packages/core_localization/lib/src/data/repositories_impl/locale_repository_impl.dart
@@ -31,7 +31,13 @@ class LocaleRepositoryImpl implements LocaleRepositoryInterface {
   }
 
   @override
-  Locale getDefaultLocale() => AppLocaleUtils.findDeviceLocale().flutterLocale;
+  Locale getDefaultLocale() {
+    final Locale deviceLocale = AppLocaleUtils.findDeviceLocale().flutterLocale;
+    if (getSupportedLocales().contains(deviceLocale)) {
+      return deviceLocale;
+    }
+    return const Locale('en');
+  }
 
   @override
   List<Locale> getSupportedLocales() => AppLocaleUtils.supportedLocales;