diff --git a/src/Nocr.TelegramListener.Async.Api.Contracts/Events/TextUpdateReceived.cs b/src/Nocr.TelegramListener.Async.Api.Contracts/Events/TextUpdateReceived.cs
index a5e31bd..27465d2 100644
--- a/src/Nocr.TelegramListener.Async.Api.Contracts/Events/TextUpdateReceived.cs
+++ b/src/Nocr.TelegramListener.Async.Api.Contracts/Events/TextUpdateReceived.cs
@@ -4,11 +4,11 @@ public sealed class MessageReceived : IEvent
 {
     public Guid Id { get; } = Guid.NewGuid();
     
-    public string Text { get; set; }
+    public string Text { get; set; } = default!;
     
     public long From { get; set; }
     
     public long ChatId { get; set; }
     
     public DateTimeOffset OccuredDateTime { get; set; }
-}
\ No newline at end of file
+}