diff --git a/CryptoExchange.Net/Converters/TimestampSecondsConverter.cs b/CryptoExchange.Net/Converters/TimestampSecondsConverter.cs
index b05ce26..b7a11d0 100644
--- a/CryptoExchange.Net/Converters/TimestampSecondsConverter.cs
+++ b/CryptoExchange.Net/Converters/TimestampSecondsConverter.cs
@@ -13,7 +13,7 @@ namespace CryptoExchange.Net.Converters
 
         public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
         {
-            var t = double.Parse((string)reader.Value.ToString(), CultureInfo.InvariantCulture);
+            var t = double.Parse(reader.Value.ToString(), CultureInfo.InvariantCulture);
             return new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc).AddSeconds(t);
         }