diff --git a/src/Senparc.Weixin.TenPay/Senparc.Weixin.TenPayV3/Apis/PayScore/Entities/RequestData/CancelServiceOrderRequestData.cs b/src/Senparc.Weixin.TenPay/Senparc.Weixin.TenPayV3/Apis/PayScore/Entities/RequestData/CancelServiceOrderRequestData.cs
index 4667f1e4e2..e0794c1af9 100644
--- a/src/Senparc.Weixin.TenPay/Senparc.Weixin.TenPayV3/Apis/PayScore/Entities/RequestData/CancelServiceOrderRequestData.cs
+++ b/src/Senparc.Weixin.TenPay/Senparc.Weixin.TenPayV3/Apis/PayScore/Entities/RequestData/CancelServiceOrderRequestData.cs
@@ -67,6 +67,7 @@ public CancelServiceOrderRequestData()
         /// <para>path商户系统内部服务订单号（不是交易单号），与创建订单时一致。 </para>
         /// <para>示例值：2304203423948239423 </para>
         /// </summary>
+        [JsonIgnore]
         public string out_order_no { get; set; }
 
         /// <summary>
diff --git a/src/Senparc.Weixin.TenPay/Senparc.Weixin.TenPayV3/Apis/PayScore/Entities/RequestData/CompleteServiceOrderRequestData.cs b/src/Senparc.Weixin.TenPay/Senparc.Weixin.TenPayV3/Apis/PayScore/Entities/RequestData/CompleteServiceOrderRequestData.cs
index e3ef8fb8fe..8bee267e77 100644
--- a/src/Senparc.Weixin.TenPay/Senparc.Weixin.TenPayV3/Apis/PayScore/Entities/RequestData/CompleteServiceOrderRequestData.cs
+++ b/src/Senparc.Weixin.TenPay/Senparc.Weixin.TenPayV3/Apis/PayScore/Entities/RequestData/CompleteServiceOrderRequestData.cs
@@ -30,6 +30,7 @@ and limitations under the License.
 ----------------------------------------------------------------*/
 
 
+using Newtonsoft.Json;
 using Senparc.Weixin.TenPayV3.Entities;
 using System;
 using System.Collections.Generic;
@@ -86,6 +87,7 @@ public CompleteServiceOrderRequestData()
         /// <para>path 商户系统内部服务订单号（不是交易单号），与创建订单时一致</para>
         /// <para>示例值：1234323JKHDFE1243252 </para>
         /// </summary>
+        [JsonIgnore]
         public string out_order_no { get; set; }
 
         /// <summary>
diff --git a/src/Senparc.Weixin.TenPay/Senparc.Weixin.TenPayV3/Senparc.Weixin.TenPayV3.net8.csproj b/src/Senparc.Weixin.TenPay/Senparc.Weixin.TenPayV3/Senparc.Weixin.TenPayV3.net8.csproj
index 2f53efcb6e..2f6f454383 100644
--- a/src/Senparc.Weixin.TenPay/Senparc.Weixin.TenPayV3/Senparc.Weixin.TenPayV3.net8.csproj
+++ b/src/Senparc.Weixin.TenPay/Senparc.Weixin.TenPayV3/Senparc.Weixin.TenPayV3.net8.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFramework>netstandard2.1</TargetFramework>
-    <Version>1.2.1</Version>
+    <Version>1.2.1.1</Version>
     <AssemblyName>Senparc.Weixin.TenPayV3</AssemblyName>
     <RootNamespace>Senparc.Weixin.TenPayV3</RootNamespace>
     <LangVersion>10.0</LangVersion>
@@ -53,7 +53,8 @@
 		2、添加小程序发货信息管理服务消息事件 PR#2908
 		3、TenPayV3分账 字段内部加密 PR#2909
 		v1.1.0 TenPaySignHelper.GetJsApiUiPackage() 方法添加 senparcWeixinSettingForTenpayV3 参数
-</PackageReleaseNotes>
+		v1.2.1.1 解决微信支付分、完成订单参数可为空的问题 Issue #2989
+	</PackageReleaseNotes>
     <RepositoryUrl>https://github.com/JeffreySu/WeiXinMPSDK</RepositoryUrl>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">