diff --git a/.github/workflows/dotnetcore.yml b/.github/workflows/dotnetcore.yml
index f3cef7c..84f29c7 100644
--- a/.github/workflows/dotnetcore.yml
+++ b/.github/workflows/dotnetcore.yml
@@ -12,7 +12,7 @@ jobs:
     - name: Setup .NET Core
       uses: actions/setup-dotnet@master
       with:
-         dotnet-version: 5.0.100
+         dotnet-version: 9.0.100
     - name: dotnet info
       run: dotnet --info
     - name: dotnet restore
diff --git a/README.md b/README.md
index cfb6711..aeaeb59 100644
--- a/README.md
+++ b/README.md
@@ -11,5 +11,5 @@ JTActiveSafety协议、道路运输车辆主动安全智能防控系统-主动
 
 | Package Name          | Version                                            | Downloads|                                     Remark      |
 | --------------------- | -------------------------------------------------- | --------------------------------------------------- |--------------------------------------------------- |
-| Install-Package JTActiveSafety| ![JTActiveSafety](https://img.shields.io/nuget/v/JTActiveSafety.svg) | ![JT808](https://img.shields.io/nuget/dt/JTActiveSafety.svg) |主动安全的附件协议|
+| Install-Package JTActiveSafety| ![JTActiveSafety](https://img.shields.io/nuget/v/JTActiveSafety.svg) | ![JTActiveSafety](https://img.shields.io/nuget/dt/JTActiveSafety.svg) |主动安全的附件协议|
 
diff --git a/src/JTActiveSafety.Protocol.Test/JTActiveSafety.Protocol.Test.csproj b/src/JTActiveSafety.Protocol.Test/JTActiveSafety.Protocol.Test.csproj
index e93a723..ccacb98 100644
--- a/src/JTActiveSafety.Protocol.Test/JTActiveSafety.Protocol.Test.csproj
+++ b/src/JTActiveSafety.Protocol.Test/JTActiveSafety.Protocol.Test.csproj
@@ -1,15 +1,15 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net5.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
 
     <IsPackable>false</IsPackable>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.8.3" />
-    <PackageReference Include="xunit" Version="2.4.1" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
+    <PackageReference Include="xunit" Version="2.9.2" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
diff --git a/src/JTActiveSafety.Protocol.Test/JTActiveSafetySerializerTest.cs b/src/JTActiveSafety.Protocol.Test/JTActiveSafetySerializerTest.cs
index 6a1d46d..1c0ad96 100644
--- a/src/JTActiveSafety.Protocol.Test/JTActiveSafetySerializerTest.cs
+++ b/src/JTActiveSafety.Protocol.Test/JTActiveSafetySerializerTest.cs
@@ -2,11 +2,19 @@ using System;
 using Xunit;
 using JTActiveSafety.Protocol;
 using JTActiveSafety.Protocol.Extensions;
+using System.Text.Encodings.Web;
+using System.Text.Json;
+using System.Text.Unicode;
 
 namespace JTActiveSafety.Protocol.Test
 {
     public class JTActiveSafetySerializerTest
     {
+        public readonly static JsonWriterOptions Instance = new System.Text.Json.JsonWriterOptions
+        {
+            Indented = true,
+            Encoder = JavaScriptEncoder.Create(UnicodeRanges.All)
+        };
         [Fact]
         public void SerializeTest1()
         {
@@ -15,16 +23,16 @@ namespace JTActiveSafety.Protocol.Test
             package.Offset = 1;
             package.Bodies = new byte[5] { 1, 2, 3, 4, 5 };
             var hex = JTActiveSafetySerializer.Serialize(package).ToHexString();
-            Assert.Equal("30 31 63 64 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 61 6C 61 72 6D 2E 78 6C 73 78 00 00 00 01 00 00 00 05 01 02 03 04 05", hex);
+            Assert.Equal("30 31 63 64 61 6C 61 72 6D 2E 78 6C 73 78 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 05 01 02 03 04 05", hex);
         }
 
         [Fact]
         public void DeserializeTest1()
         {
-            var data = "30 31 63 64 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 61 6C 61 72 6D 2E 78 6C 73 78 00 00 00 01 00 00 00 05 01 02 03 04 05".ToHexBytes();
+            var data = "30 31 63 64 61 6C 61 72 6D 2E 78 6C 73 78 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 05 01 02 03 04 05".ToHexBytes();
             var package = JTActiveSafetySerializer.Deserialize(data);
             Assert.Equal(JTActiveSafetyPackage.FH, package.FH_Flag);
-            Assert.Equal("alarm.xlsx", package.FileName.TrimStart('\0'));
+            Assert.Equal("alarm.xlsx", package.FileName.TrimEnd('\0'));
             Assert.Equal(1u, package.Offset);
             Assert.Equal(5u, package.Length);
             Assert.Equal(new byte[5] { 1, 2, 3, 4, 5 }, package.Bodies);
@@ -33,8 +41,8 @@ namespace JTActiveSafety.Protocol.Test
         [Fact]
         public void AnalyzeTest1()
         {
-            var data = "30 31 63 64 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 61 6C 61 72 6D 2E 78 6C 73 78 00 00 00 01 00 00 00 05 01 02 03 04 05".ToHexBytes();
-            var json = JTActiveSafetySerializer.Analyze(data);
+            var data = "30 31 63 64 61 6C 61 72 6D 2E 78 6C 73 78 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 05 01 02 03 04 05".ToHexBytes();
+            var json = JTActiveSafetySerializer.Analyze(data, Instance);
         }
     }
 }
diff --git a/src/JTActiveSafety.Protocol/JTActiveSafety.Protocol.csproj b/src/JTActiveSafety.Protocol/JTActiveSafety.Protocol.csproj
index a5e5e60..9dc8979 100644
--- a/src/JTActiveSafety.Protocol/JTActiveSafety.Protocol.csproj
+++ b/src/JTActiveSafety.Protocol/JTActiveSafety.Protocol.csproj
@@ -1,8 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;netstandard2.1;net5.0;</TargetFrameworks>
-    <LangVersion>9.0</LangVersion>
+    <TargetFrameworks>net9.0</TargetFrameworks>
+    <LangVersion>13.0</LangVersion>
     <Copyright>Copyright 2019.</Copyright>
     <Authors>SmallChi(Koike)</Authors>
     <PackageId>JTActiveSafety</PackageId>
@@ -16,16 +16,9 @@
     <license>https://github.com/SmallChi/JTActiveSafety/blob/master/LICENSE</license>
     <GeneratePackageOnBuild>false</GeneratePackageOnBuild>
     <DocumentationFile>JTActiveSafety.Protocol.xml</DocumentationFile>
-    <Version>1.0.1</Version>
+    <Version>1.0.2</Version>
     <PackageLicenseFile>LICENSE</PackageLicenseFile>
   </PropertyGroup>
-
-  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0' ">
-    <PackageReference Include="System.Memory" Version="4.5.4" />
-  </ItemGroup>
-  <ItemGroup>
-    <PackageReference Include="System.Text.Json" Version="5.0.1" />
-  </ItemGroup>
   <ItemGroup>
     <None Include="..\..\LICENSE">
       <Pack>True</Pack>
diff --git a/src/JTActiveSafety.Protocol/JTActiveSafetySerializer.cs b/src/JTActiveSafety.Protocol/JTActiveSafetySerializer.cs
index 3c459bb..9d9738c 100644
--- a/src/JTActiveSafety.Protocol/JTActiveSafetySerializer.cs
+++ b/src/JTActiveSafety.Protocol/JTActiveSafetySerializer.cs
@@ -6,7 +6,9 @@ using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Text;
+using System.Text.Encodings.Web;
 using System.Text.Json;
+using System.Text.Unicode;
 
 namespace JTActiveSafety.Protocol
 {
@@ -28,7 +30,7 @@ namespace JTActiveSafety.Protocol
             {
                 JTActiveSafetyMessagePackWriter writer = new JTActiveSafetyMessagePackWriter(buffer);
                 writer.WriteUInt32(package.FH_Flag);
-                writer.WriteString(package.FileName.PadLeft(50, '\0'));
+                writer.WriteString(package.FileName.PadRight(50, '\0'));
                 writer.WriteUInt32(package.Offset);
                 writer.WriteUInt32((uint)package.Bodies.Length);
                 writer.WriteArray(package.Bodies);