diff --git a/Directory.Build.props b/Directory.Build.props
index 719ae2f..d381537 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -8,7 +8,7 @@
     <Nullable>enable</Nullable>
     <PackageRequireLicenseAcceptance>false</PackageRequireLicenseAcceptance>
     <Description>将 YAML 文件转 C# 代码</Description>
-    <Copyright>Copyright (c) 2020 dotnet-campus</Copyright>
+    <Copyright>Copyright (c) 2020-2024 dotnet-campus</Copyright>
     <PackageProjectUrl>https://github.com/dotnet-campus/dotnetCampus.YamlToCSharp</PackageProjectUrl>
     <RepositoryUrl>https://github.com/dotnet-campus/dotnetCampus.YamlToCSharp</RepositoryUrl>
     <RepositoryType>git</RepositoryType>
diff --git a/samples/dotnetCampus.YamlToCSharp.Sample.Wpf/dotnetCampus.YamlToCSharp.Sample.Wpf.csproj b/samples/dotnetCampus.YamlToCSharp.Sample.Wpf/dotnetCampus.YamlToCSharp.Sample.Wpf.csproj
index 2d8fcbd..694f1b5 100644
--- a/samples/dotnetCampus.YamlToCSharp.Sample.Wpf/dotnetCampus.YamlToCSharp.Sample.Wpf.csproj
+++ b/samples/dotnetCampus.YamlToCSharp.Sample.Wpf/dotnetCampus.YamlToCSharp.Sample.Wpf.csproj
@@ -4,7 +4,7 @@
   
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
-    <TargetFrameworks>net48;netcoreapp3.1</TargetFrameworks>
+    <TargetFrameworks>net8.0-windows</TargetFrameworks>
     <UseWPF>true</UseWPF>
     <RootNamespace>dotnetCampus.YamlToCSharp</RootNamespace>
     <ShouldFixNuGetImportingBugForWpfProjects>False</ShouldFixNuGetImportingBugForWpfProjects>
diff --git a/samples/dotnetCampus.YamlToCSharp.SourceGeneration.Sample/dotnetCampus.YamlToCSharp.SourceGeneration.Sample.csproj b/samples/dotnetCampus.YamlToCSharp.SourceGeneration.Sample/dotnetCampus.YamlToCSharp.SourceGeneration.Sample.csproj
index 5464327..f4b6dec 100644
--- a/samples/dotnetCampus.YamlToCSharp.SourceGeneration.Sample/dotnetCampus.YamlToCSharp.SourceGeneration.Sample.csproj
+++ b/samples/dotnetCampus.YamlToCSharp.SourceGeneration.Sample/dotnetCampus.YamlToCSharp.SourceGeneration.Sample.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
-    <TargetFramework>net6.0-windows</TargetFramework>
+    <TargetFramework>net8.0-windows</TargetFramework>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
diff --git a/src/dotnetCampus.YamlToCSharp.Build/dotnetCampus.YamlToCSharp.Build.csproj b/src/dotnetCampus.YamlToCSharp.Build/dotnetCampus.YamlToCSharp.Build.csproj
index 42623db..e4a270c 100644
--- a/src/dotnetCampus.YamlToCSharp.Build/dotnetCampus.YamlToCSharp.Build.csproj
+++ b/src/dotnetCampus.YamlToCSharp.Build/dotnetCampus.YamlToCSharp.Build.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFrameworks>net45;netstandard2.0;netcoreapp3.1</TargetFrameworks>
+    <TargetFramework>net8.0</TargetFramework>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <IncludeBuildOutput>false</IncludeBuildOutput>
     <RootNamespace>dotnetCampus.YamlToCSharp</RootNamespace>
@@ -25,14 +25,14 @@
     <ItemGroup>
       <None Include="Assets\build\PackageId.props" Pack="True" PackagePath="build\$(PackageId).props" />
       <None Include="Assets\build\PackageId.targets" Pack="True" PackagePath="build\$(PackageId).targets" />
-      <None Include="$(OutputPath)\netcoreapp3.1\**" Pack="True" PackagePath="tools" />
+      <None Include="$(OutputPath)**" Pack="True" PackagePath="tools" />
     </ItemGroup>
   </Target>
 
   <!-- For debug only. -->
-  <Target Name="_DCYB_CopyOutputToDebuggableFolder" BeforeTargets="GenerateNuspec">
+  <Target Name="_DCYB_CopyOutputToDebuggableFolder" AfterTargets="AfterBuild">
     <ItemGroup>
-      <_DCYB_ToCopyFiles Include="$(OutputPath)\netcoreapp3.1\**" />
+      <_DCYB_ToCopyFiles Include="$(OutputPath)**" />
     </ItemGroup>
     <Message Text="Copy output files into the debug folder: @(_DCYB_ToCopyFiles)" />
     <Copy SourceFiles="@(_DCYB_ToCopyFiles)" DestinationFolder="Assets\tools" />