diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/PayTransactions/CreatePayTransactionH5Request.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/PayTransactions/CreatePayTransactionH5Request.cs
index 81761263..881ccc00 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/PayTransactions/CreatePayTransactionH5Request.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/PayTransactions/CreatePayTransactionH5Request.cs
@@ -158,7 +158,7 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
         /// </summary>
         [Newtonsoft.Json.JsonProperty("scene_info")]
         [System.Text.Json.Serialization.JsonPropertyName("scene_info")]
-        public Types.Scene Scene { get; set; } = new Types.Scene();
+        public Types.Scene? Scene { get; set; }
 
         /// <summary>
         /// 获取或设置结算信息。
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/PayTransactions/CreatePayTransactionNativeRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/PayTransactions/CreatePayTransactionNativeRequest.cs
index 79af4d25..fa08c3d0 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/PayTransactions/CreatePayTransactionNativeRequest.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/PayTransactions/CreatePayTransactionNativeRequest.cs
@@ -110,7 +110,7 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
         /// </summary>
         [Newtonsoft.Json.JsonProperty("scene_info")]
         [System.Text.Json.Serialization.JsonPropertyName("scene_info")]
-        public Types.Scene Scene { get; set; } = new Types.Scene();
+        public Types.Scene? Scene { get; set; }
 
         /// <summary>
         /// 获取或设置结算信息。
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/_Partner/EducationSchoolPay/CreateEducationSchoolPayTransactionRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/_Partner/EducationSchoolPay/CreateEducationSchoolPayTransactionRequest.cs
index 6f5a923f..434a6599 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/_Partner/EducationSchoolPay/CreateEducationSchoolPayTransactionRequest.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/_Partner/EducationSchoolPay/CreateEducationSchoolPayTransactionRequest.cs
@@ -123,7 +123,7 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
         /// </summary>
         [Newtonsoft.Json.JsonProperty("scene_info")]
         [System.Text.Json.Serialization.JsonPropertyName("scene_info")]
-        public Types.Scene Scene { get; set; } = new Types.Scene();
+        public Types.Scene? Scene { get; set; }
 
         /// <summary>
         /// 获取或设置设备信息。
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/_Partner/PayTransactions/CreatePayPartnerTransactionCodePayRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/_Partner/PayTransactions/CreatePayPartnerTransactionCodePayRequest.cs
index 6e3f3f3f..a4905ba6 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/_Partner/PayTransactions/CreatePayPartnerTransactionCodePayRequest.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/_Partner/PayTransactions/CreatePayPartnerTransactionCodePayRequest.cs
@@ -117,7 +117,7 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
         /// </summary>
         [Newtonsoft.Json.JsonProperty("scene_info")]
         [System.Text.Json.Serialization.JsonPropertyName("scene_info")]
-        public Types.Scene Scene { get; set; } = new Types.Scene();
+        public Types.Scene? Scene { get; set; }
 
         /// <summary>
         /// 获取或设置结算信息。
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/_Partner/PayTransactions/CreatePayPartnerTransactionH5Request.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/_Partner/PayTransactions/CreatePayPartnerTransactionH5Request.cs
index 09620d08..a51a1dde 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/_Partner/PayTransactions/CreatePayPartnerTransactionH5Request.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/_Partner/PayTransactions/CreatePayPartnerTransactionH5Request.cs
@@ -124,7 +124,7 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
         /// </summary>
         [Newtonsoft.Json.JsonProperty("scene_info")]
         [System.Text.Json.Serialization.JsonPropertyName("scene_info")]
-        public Types.Scene Scene { get; set; } = new Types.Scene();
+        public Types.Scene? Scene { get; set; }
 
         /// <summary>
         /// 获取或设置结算信息。
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/_Partner/PayTransactions/CreatePayPartnerTransactionNativeRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/_Partner/PayTransactions/CreatePayPartnerTransactionNativeRequest.cs
index 12f2c956..69b915cd 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/_Partner/PayTransactions/CreatePayPartnerTransactionNativeRequest.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/_Partner/PayTransactions/CreatePayPartnerTransactionNativeRequest.cs
@@ -124,7 +124,7 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
         /// </summary>
         [Newtonsoft.Json.JsonProperty("scene_info")]
         [System.Text.Json.Serialization.JsonPropertyName("scene_info")]
-        public Types.Scene Scene { get; set; } = new Types.Scene();
+        public Types.Scene? Scene { get; set; }
 
         /// <summary>
         /// 获取或设置结算信息。
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/_Partner/PayTransactions/CreatePayPartnerTransactionScannedPosRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/_Partner/PayTransactions/CreatePayPartnerTransactionScannedPosRequest.cs
index 0d4057ef..c583938c 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/_Partner/PayTransactions/CreatePayPartnerTransactionScannedPosRequest.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/_Partner/PayTransactions/CreatePayPartnerTransactionScannedPosRequest.cs
@@ -135,7 +135,7 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
         /// </summary>
         [Newtonsoft.Json.JsonProperty("scene_info")]
         [System.Text.Json.Serialization.JsonPropertyName("scene_info")]
-        public Types.Scene Scene { get; set; } = new Types.Scene();
+        public Types.Scene? Scene { get; set; }
 
         /// <summary>
         /// 获取或设置结算信息。