diff --git a/JpnCardsPokemon.Sdk/Api/Card.cs b/JpnCardsPokemon.Sdk/Api/Card.cs
index 14f2989..19ccebf 100644
--- a/JpnCardsPokemon.Sdk/Api/Card.cs
+++ b/JpnCardsPokemon.Sdk/Api/Card.cs
@@ -1,6 +1,5 @@
 using System.Collections.Generic;
 using System.Text.Json.Serialization;
-using JpnCardsPokemon.Sdk.Utils.JsonConverter;
 
 namespace JpnCardsPokemon.Sdk.Api;
 
@@ -64,7 +63,6 @@ public class Card
     ///     A list of known prices for this card.
     /// </summary>
     /// <remarks>May contain entries from different sellers, versions and conditions.</remarks>
-    [JsonConverter(typeof(CardPricesJsonConverter))]
     public IEnumerable<CardPrice>? Prices { get; set; }
 
     /// <summary>
diff --git a/JpnCardsPokemon.Sdk/Api/CardPrice.cs b/JpnCardsPokemon.Sdk/Api/CardPrice.cs
index dabcbae..d398ee4 100644
--- a/JpnCardsPokemon.Sdk/Api/CardPrice.cs
+++ b/JpnCardsPokemon.Sdk/Api/CardPrice.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Text.Json.Serialization;
+using JpnCardsPokemon.Sdk.Utils.JsonConverter;
 
 namespace JpnCardsPokemon.Sdk.Api;
 
@@ -12,6 +13,7 @@ public class CardPrice
     ///     Specifies the card version. Almost always will be 'Regular' but may contain other versions like 'Reverse Holo',
     ///     etc.
     /// </summary>
+    [JsonPropertyName("variant")]
     public string? Version { get; set; }
 
     /// <summary>
@@ -37,6 +39,7 @@ public class CardPrice
     ///     Date when the price information was updated last.
     /// </summary>
     [JsonPropertyName("dateUpdated")]
+    [JsonConverter(typeof(CustomDateTimeConverter))]
     public DateTime? UpdatedDate { get; set; }
 
     /// <summary>
@@ -48,5 +51,6 @@ public class CardPrice
     /// <summary>
     ///     Name of the seller who is listing the card.
     /// </summary>
+    [JsonPropertyName("vendor")]
     public string? Seller { get; set; }
 }
\ No newline at end of file
diff --git a/JpnCardsPokemon.Sdk/Utils/JsonConverter/CardPricesJsonConverter.cs b/JpnCardsPokemon.Sdk/Utils/JsonConverter/CardPricesJsonConverter.cs
deleted file mode 100644
index 9f32882..0000000
--- a/JpnCardsPokemon.Sdk/Utils/JsonConverter/CardPricesJsonConverter.cs
+++ /dev/null
@@ -1,111 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Globalization;
-using System.Linq;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-using JpnCardsPokemon.Sdk.Api;
-
-namespace JpnCardsPokemon.Sdk.Utils.JsonConverter;
-
-internal class CardPricesJsonConverter : JsonConverter<IEnumerable<CardPrice>>
-{
-    public override IEnumerable<CardPrice> Read(ref Utf8JsonReader reader, Type typeToConvert,
-        JsonSerializerOptions options)
-    {
-        var resultBucket = new List<CardPrice>();
-
-        // read sellers
-        while (reader.Read())
-        {
-            // Finished parsing?
-            if (reader.TokenType == JsonTokenType.EndArray)
-                break;
-
-
-            if (reader.TokenType != JsonTokenType.PropertyName) continue;
-            var sellerName = reader.GetString();
-
-            // Versions
-            while (reader.Read())
-            {
-                if (reader.TokenType == JsonTokenType.EndArray)
-                    break;
-
-                // Version, usually "Regular"
-                if (reader.TokenType != JsonTokenType.PropertyName) continue;
-                var cardVersion = reader.GetString();
-
-                // Conditions
-                while (reader.Read())
-                {
-                    if (reader.TokenType == JsonTokenType.EndObject) break;
-
-                    if (reader.TokenType != JsonTokenType.PropertyName) continue;
-                    var condition = reader.GetString();
-
-                    var cardPrice = new CardPrice
-                    {
-                        Seller = sellerName,
-                        Version = cardVersion,
-                        Condition = condition
-                    };
-
-                    var propertyName = string.Empty;
-                    // Final price properties
-                    while (reader.Read())
-                    {
-                        if (reader.TokenType == JsonTokenType.EndObject) break;
-
-
-                        if (reader.TokenType == JsonTokenType.PropertyName)
-                        {
-                            propertyName = reader.GetString();
-                        }
-                        else
-                        {
-                            // search correct property in object
-                            if (string.IsNullOrEmpty(propertyName)) continue;
-
-                            var property = cardPrice.GetType().GetProperty(propertyName) ?? cardPrice
-                                .GetType().GetProperties().FirstOrDefault(p =>
-                                    p.GetCustomAttributes(typeof(JsonPropertyNameAttribute), true)
-                                        .Cast<JsonPropertyNameAttribute>()
-                                        .Any(a => a.Name.Equals(propertyName,
-                                            StringComparison.InvariantCultureIgnoreCase)));
-                            if (property != null)
-                            {
-                                object? value = null;
-                                var propertyType = property.PropertyType;
-
-                                if (propertyType == typeof(string))
-                                    value = reader.GetString();
-                                else if (propertyType == typeof(decimal))
-                                    value = reader.GetDecimal();
-                                else if (propertyType == typeof(DateTime?))
-                                    if (DateTime.TryParseExact(reader.GetString(), "MM/dd/yyyy",
-                                            CultureInfo.InvariantCulture, DateTimeStyles.None, out var dt))
-                                        value = dt;
-
-                                property.SetValue(cardPrice, value);
-                            }
-
-                            propertyName = string.Empty;
-                        }
-                    }
-
-                    // add card to bucket
-                    resultBucket.Add(cardPrice);
-                }
-            }
-        }
-
-
-        return resultBucket;
-    }
-
-    public override void Write(Utf8JsonWriter writer, IEnumerable<CardPrice> value, JsonSerializerOptions options)
-    {
-        throw new NotImplementedException();
-    }
-}
\ No newline at end of file
diff --git a/JpnCardsPokemon.Sdk/Utils/JsonConverter/CustomDateTimeConverter.cs b/JpnCardsPokemon.Sdk/Utils/JsonConverter/CustomDateTimeConverter.cs
new file mode 100644
index 0000000..45c47b5
--- /dev/null
+++ b/JpnCardsPokemon.Sdk/Utils/JsonConverter/CustomDateTimeConverter.cs
@@ -0,0 +1,46 @@
+using System;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace JpnCardsPokemon.Sdk.Utils.JsonConverter
+{
+    internal class CustomDateTimeConverter : JsonConverter<DateTime?>
+    {
+        private readonly string _dateTimeFormat = "MM/dd/yyyy";
+
+        public override DateTime? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+        {
+            switch (reader.TokenType)
+            {
+                case JsonTokenType.Null:
+                    return null;
+                case JsonTokenType.String:
+                {
+                    var dateString = reader.GetString();
+                    if (DateTime.TryParseExact(dateString, _dateTimeFormat, null, System.Globalization.DateTimeStyles.None, out var dateTime))
+                    {
+                        return dateTime;
+                    }
+
+                    break;
+                }
+                default:
+                    throw new JsonException($"Cannot convert {reader.GetString()} to DateTime.");
+            }
+
+            throw new JsonException($"Cannot convert {reader.GetString()} to DateTime.");
+        }
+
+        public override void Write(Utf8JsonWriter writer, DateTime? value, JsonSerializerOptions options)
+        {
+            if (value.HasValue)
+            {
+                writer.WriteStringValue(value.Value.ToString(_dateTimeFormat));
+            }
+            else
+            {
+                writer.WriteNullValue();
+            }
+        }
+    }
+}