diff --git a/src/RxTelegram.Bot/Utils/Converter/MultiTypeClassConverter.cs b/src/RxTelegram.Bot/Utils/Converter/MultiTypeClassConverter.cs
index 09edbe5..6f0897b 100644
--- a/src/RxTelegram.Bot/Utils/Converter/MultiTypeClassConverter.cs
+++ b/src/RxTelegram.Bot/Utils/Converter/MultiTypeClassConverter.cs
@@ -1,5 +1,4 @@
 using System;
-using System.Globalization;
 using System.Linq;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;