diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Converters/Newtonsoft.Json/Array[string]/JsonTypedStringArrayConverter.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Converters/Newtonsoft.Json/Array[string]/JsonTypedStringArrayConverter.cs
deleted file mode 100644
index 7658e293..00000000
--- a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Converters/Newtonsoft.Json/Array[string]/JsonTypedStringArrayConverter.cs
+++ /dev/null
@@ -1,52 +0,0 @@
-using System;
-using System.Collections.Generic;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Converters;
-
-namespace Newtonsoft.Json.Converters
-{
-    internal class JsonTypedStringArrayConverter : JsonConverter<string[]?>
-    {
-        public override bool CanRead
-        {
-            get { return true; }
-        }
-
-        public override bool CanWrite
-        {
-            get { return true; }
-        }
-
-        public override string[]? ReadJson(JsonReader reader, Type objectType, string[]? existingValue, bool hasExistingValue, JsonSerializer serializer)
-        {
-            if (reader.TokenType == JsonToken.Null)
-            {
-                return null;
-            }
-            else if (reader.TokenType == JsonToken.String)
-            {
-                string? value = serializer.Deserialize<string>(reader);
-                if (value == null)
-                    return existingValue;
-                    
-                if (value.StartsWith("[") && value.EndsWith("["))
-                    return JsonConvert.DeserializeObject<string[]>(value);
-
-                if (string.IsNullOrEmpty(value))
-                    return new string[0];
-                else
-                    return new string[1] { value };
-            }
-
-            throw new JsonReaderException();
-        }
-
-        public override void WriteJson(JsonWriter writer, string[]? value, JsonSerializer serializer)
-        {
-            if (value != null)
-                writer.WriteValue(JsonConvert.SerializeObject(value, Formatting.None));
-            else
-                writer.WriteNull();
-        }
-    }
-}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Converters/System.Text.Json/Array[string]/JsonTypedStringArrayConverter.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Converters/System.Text.Json/Array[string]/JsonTypedStringArrayConverter.cs
deleted file mode 100644
index c15ea983..00000000
--- a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Converters/System.Text.Json/Array[string]/JsonTypedStringArrayConverter.cs
+++ /dev/null
@@ -1,42 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace System.Text.Json.Converters
-{
-    internal class JsonTypedStringArrayConverter : JsonConverter<string[]?>
-    {
-        public override string[]? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
-        {
-            if (reader.TokenType == JsonTokenType.Null)
-            {
-                return null;
-            }
-            else if (reader.TokenType == JsonTokenType.String)
-            {
-                string? value = reader.GetString();
-                if (value == null)
-                    return null;
-
-                if (value.StartsWith("[") && value.EndsWith("["))
-                    return JsonSerializer.Deserialize<string[]>(value, options);
-
-                if (string.IsNullOrEmpty(value))
-                    return new string[0];
-                else
-                    return new string[1] { value };
-            }
-
-            throw new JsonException();
-        }
-
-        public override void Write(Utf8JsonWriter writer, string[]? value, JsonSerializerOptions options)
-        {
-            if (value != null)
-                writer.WriteStringValue(JsonSerializer.Serialize(value, options));
-            else
-                writer.WriteNullValue();
-        }
-    }
-}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingFavor/GetMarketingFavorStockByStockIdResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingFavor/GetMarketingFavorStockByStockIdResponse.cs
index bd6ac0d6..4331d483 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingFavor/GetMarketingFavorStockByStockIdResponse.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingFavor/GetMarketingFavorStockByStockIdResponse.cs
@@ -85,9 +85,7 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
                 /// 获取或设置指定支付方式列表。
                 /// </summary>
                 [Newtonsoft.Json.JsonProperty("trade_type")]
-                [Newtonsoft.Json.JsonConverter(typeof(Newtonsoft.Json.Converters.JsonTypedStringArrayConverter))]
                 [System.Text.Json.Serialization.JsonPropertyName("trade_type")]
-                [System.Text.Json.Serialization.JsonConverter(typeof(System.Text.Json.Converters.JsonTypedStringArrayConverter))]
                 public string[]? TradeTypeList { get; set; }
 
                 /// <summary>
diff --git a/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingFavor/GetMarketingFavorStockByStockIdResponse.json b/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingFavor/GetMarketingFavorStockByStockIdResponse.json
index f81303ab..af089bc1 100644
--- a/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingFavor/GetMarketingFavorStockByStockIdResponse.json
+++ b/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingFavor/GetMarketingFavorStockByStockIdResponse.json
@@ -10,7 +10,7 @@
         "max_amount": 5000,
         "max_amount_by_day": 400,
         "max_coupons_per_user": 3,
-        "trade_type": "MICROAPP"
+        "trade_type": [ "OTHER", "APPPAY" ]
     },
     "available_begin_time": "2015-05-20T13:29:35.120+08:00",
     "available_end_time": "2015-05-20T13:29:35.120+08:00",
diff --git a/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingFavor/QueryMarketingFavorStocksResponse.json b/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingFavor/QueryMarketingFavorStocksResponse.json
index 509d506f..a0278b85 100644
--- a/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingFavor/QueryMarketingFavorStocksResponse.json
+++ b/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingFavor/QueryMarketingFavorStocksResponse.json
@@ -17,16 +17,17 @@
                     "transaction_minimum": 100
                 },
                 "max_coupons_per_user": 3,
-                "trade_type": "APPPAY"
+                "trade_type": [ "OTHER", "APPPAY" ]
             },
             "available_begin_time": "2015-05-20T13:29:35.120+08:00",
             "available_end_time": "2015-05-20T13:29:35.120+08:00",
             "distributed_coupons": 100,
             "no_cash": true,
-            "singleitem": true,
+            "singleitem ": true,
             "stock_type": "NORMAL"
         }
     ],
     "limit": 8,
     "offset": 1
-}
\ No newline at end of file
+}
+     
\ No newline at end of file