diff --git a/CheckDownload.csproj b/CheckDownload.csproj
index de6e93e..7134f12 100644
--- a/CheckDownload.csproj
+++ b/CheckDownload.csproj
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="packages\Costura.Fody.6.0.0\build\Costura.Fody.props" Condition="Exists('packages\Costura.Fody.6.0.0\build\Costura.Fody.props')" />
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -27,6 +28,8 @@
     <ApplicationVersion>1.0.0.%2a</ApplicationVersion>
     <UseApplicationTrust>false</UseApplicationTrust>
     <BootstrapperEnabled>true</BootstrapperEnabled>
+    <NuGetPackageImportStamp>
+    </NuGetPackageImportStamp>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <PlatformTarget>AnyCPU</PlatformTarget>
@@ -51,6 +54,9 @@
     <Reference Include="Aliyun.OSS, Version=2.14.1.0, Culture=neutral, PublicKeyToken=0ad4175f0dac0b9b, processorArchitecture=MSIL">
       <HintPath>packages\Aliyun.OSS.SDK.2.14.1\lib\net461\Aliyun.OSS.dll</HintPath>
     </Reference>
+    <Reference Include="Costura, Version=6.0.0.0, Culture=neutral, PublicKeyToken=9919ef960d84173d, processorArchitecture=MSIL">
+      <HintPath>packages\Costura.Fody.6.0.0\lib\netstandard2.0\Costura.dll</HintPath>
+    </Reference>
     <Reference Include="DnsClient, Version=1.8.0.0, Culture=neutral, PublicKeyToken=4574bb5573c51424, processorArchitecture=MSIL">
       <HintPath>packages\DnsClient.1.8.0\lib\net472\DnsClient.dll</HintPath>
     </Reference>
@@ -120,4 +126,14 @@
     </BootstrapperPackage>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <Import Project="packages\Fody.6.8.2\build\Fody.targets" Condition="Exists('packages\Fody.6.8.2\build\Fody.targets')" />
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>这台计算机上缺少此项目引用的 NuGet 程序包。使用“NuGet 程序包还原”可下载这些程序包。有关更多信息，请参见 http://go.microsoft.com/fwlink/?LinkID=322105。缺少的文件是 {0}。</ErrorText>
+    </PropertyGroup>
+    <Error Condition="!Exists('packages\Fody.6.8.2\build\Fody.targets')" Text="$([System.String]::Format('$(ErrorText)', 'packages\Fody.6.8.2\build\Fody.targets'))" />
+    <Error Condition="!Exists('packages\Costura.Fody.6.0.0\build\Costura.Fody.props')" Text="$([System.String]::Format('$(ErrorText)', 'packages\Costura.Fody.6.0.0\build\Costura.Fody.props'))" />
+    <Error Condition="!Exists('packages\Costura.Fody.6.0.0\build\Costura.Fody.targets')" Text="$([System.String]::Format('$(ErrorText)', 'packages\Costura.Fody.6.0.0\build\Costura.Fody.targets'))" />
+  </Target>
+  <Import Project="packages\Costura.Fody.6.0.0\build\Costura.Fody.targets" Condition="Exists('packages\Costura.Fody.6.0.0\build\Costura.Fody.targets')" />
 </Project>
\ No newline at end of file
diff --git a/packages.config b/packages.config
index 86450b3..4f60ef7 100644
--- a/packages.config
+++ b/packages.config
@@ -1,7 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Aliyun.OSS.SDK" version="2.14.1" targetFramework="net472" />
+  <package id="Costura.Fody" version="6.0.0" targetFramework="net472" developmentDependency="true" />
   <package id="DnsClient" version="1.8.0" targetFramework="net472" />
+  <package id="Fody" version="6.8.2" targetFramework="net472" developmentDependency="true" />
   <package id="Newtonsoft.Json" version="13.0.3" targetFramework="net472" />
   <package id="System.Buffers" version="4.5.1" targetFramework="net472" />
 </packages>
\ No newline at end of file