diff --git a/nuget.config b/nuget.config
deleted file mode 100644
index 28c78837..00000000
--- a/nuget.config
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-    <config>
-        <add key="repositoryPath" value="shadowsocks-csharp\3rd" />
-    </config>
-</configuration>
diff --git a/shadowsocks-csharp/FodyWeavers.xsd b/shadowsocks-csharp/FodyWeavers.xsd
index e9cd8f0e..a96b3592 100644
--- a/shadowsocks-csharp/FodyWeavers.xsd
+++ b/shadowsocks-csharp/FodyWeavers.xsd
@@ -4,7 +4,6 @@
   <xs:element name="Weavers">
     <xs:complexType>
       <xs:all>
-        <xs:element name="Caseless" minOccurs="0" maxOccurs="1" type="xs:anyType" />
         <xs:element name="Costura" minOccurs="0" maxOccurs="1">
           <xs:complexType>
             <xs:all>
@@ -91,6 +90,7 @@
             </xs:attribute>
           </xs:complexType>
         </xs:element>
+        <xs:element name="Caseless" minOccurs="0" maxOccurs="1" type="xs:anyType" />
       </xs:all>
       <xs:attribute name="VerifyAssembly" type="xs:boolean">
         <xs:annotation>
diff --git a/shadowsocks-csharp/packages.config b/shadowsocks-csharp/packages.config
index 98767e3e..f7fcb451 100644
--- a/shadowsocks-csharp/packages.config
+++ b/shadowsocks-csharp/packages.config
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Caseless.Fody" version="1.8.3" targetFramework="net462" developmentDependency="true" />
-  <package id="Costura.Fody" version="3.3.2" targetFramework="net462" developmentDependency="true" />
-  <package id="Fody" version="4.0.0" targetFramework="net462" developmentDependency="true" />
-  <package id="GlobalHotKey" version="1.1.0" targetFramework="net462" />
-  <package id="Newtonsoft.Json" version="12.0.1" targetFramework="net462" />
-  <package id="StringEx.CS" version="0.3.1" targetFramework="net462" developmentDependency="true" />
-  <package id="ZXing.Net" version="0.16.4" targetFramework="net462" />
+  <package id="Caseless.Fody" version="1.8.3" targetFramework="net472" />
+  <package id="Costura.Fody" version="3.3.3" targetFramework="net472" />
+  <package id="Fody" version="4.2.1" targetFramework="net472" developmentDependency="true" />
+  <package id="GlobalHotKey" version="1.1.0" targetFramework="net472" />
+  <package id="Newtonsoft.Json" version="12.0.2" targetFramework="net472" />
+  <package id="StringEx.CS" version="0.3.1" targetFramework="net472" developmentDependency="true" />
+  <package id="ZXing.Net" version="0.16.5" targetFramework="net472" />
 </packages>
\ No newline at end of file
diff --git a/shadowsocks-csharp/shadowsocks-csharp.csproj b/shadowsocks-csharp/shadowsocks-csharp.csproj
index b65f466b..3d1ab13c 100644
--- a/shadowsocks-csharp/shadowsocks-csharp.csproj
+++ b/shadowsocks-csharp/shadowsocks-csharp.csproj
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="3rd\Caseless.Fody.1.8.3\build\Caseless.Fody.props" Condition="Exists('3rd\Caseless.Fody.1.8.3\build\Caseless.Fody.props')" />
-  <Import Project="3rd\Costura.Fody.3.3.2\build\Costura.Fody.props" Condition="Exists('3rd\Costura.Fody.3.3.2\build\Costura.Fody.props')" />
+  <Import Project="..\packages\Costura.Fody.3.3.3\build\Costura.Fody.props" Condition="Exists('..\packages\Costura.Fody.3.3.3\build\Costura.Fody.props')" />
+  <Import Project="..\packages\Caseless.Fody.1.8.3\build\Caseless.Fody.props" Condition="Exists('..\packages\Caseless.Fody.1.8.3\build\Caseless.Fody.props')" />
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
@@ -69,19 +69,18 @@
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Caseless, Version=1.8.3.0, Culture=neutral, PublicKeyToken=409b3227471b0f0d, processorArchitecture=MSIL">
-      <HintPath>3rd\Caseless.Fody.1.8.3\lib\net452\Caseless.dll</HintPath>
+      <HintPath>..\packages\Caseless.Fody.1.8.3\lib\net452\Caseless.dll</HintPath>
     </Reference>
-    <Reference Include="Costura, Version=3.3.2.0, Culture=neutral, PublicKeyToken=9919ef960d84173d, processorArchitecture=MSIL">
-      <HintPath>3rd\Costura.Fody.3.3.2\lib\net40\Costura.dll</HintPath>
+    <Reference Include="Costura, Version=3.3.3.0, Culture=neutral, PublicKeyToken=9919ef960d84173d, processorArchitecture=MSIL">
+      <HintPath>..\packages\Costura.Fody.3.3.3\lib\net40\Costura.dll</HintPath>
     </Reference>
     <Reference Include="GlobalHotKey, Version=1.1.0.0, Culture=neutral, processorArchitecture=MSIL">
-      <HintPath>3rd\GlobalHotKey.1.1.0\lib\GlobalHotKey.dll</HintPath>
-      <Private>True</Private>
+      <HintPath>..\packages\GlobalHotKey.1.1.0\lib\GlobalHotKey.dll</HintPath>
     </Reference>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="Microsoft.VisualBasic" />
     <Reference Include="Newtonsoft.Json, Version=12.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
-      <HintPath>3rd\Newtonsoft.Json.12.0.1\lib\net45\Newtonsoft.Json.dll</HintPath>
+      <HintPath>..\packages\Newtonsoft.Json.12.0.2\lib\net45\Newtonsoft.Json.dll</HintPath>
     </Reference>
     <Reference Include="PresentationCore" />
     <Reference Include="System" />
@@ -94,11 +93,11 @@
     <Reference Include="System.Windows.Forms.DataVisualization" />
     <Reference Include="System.XML" />
     <Reference Include="WindowsBase" />
-    <Reference Include="zxing, Version=0.16.4.0, Culture=neutral, PublicKeyToken=4e88037ac681fe60, processorArchitecture=MSIL">
-      <HintPath>3rd\ZXing.Net.0.16.4\lib\net461\zxing.dll</HintPath>
+    <Reference Include="zxing, Version=0.16.5.0, Culture=neutral, PublicKeyToken=4e88037ac681fe60, processorArchitecture=MSIL">
+      <HintPath>..\packages\ZXing.Net.0.16.5\lib\net47\zxing.dll</HintPath>
     </Reference>
-    <Reference Include="zxing.presentation, Version=0.16.4.0, Culture=neutral, PublicKeyToken=4e88037ac681fe60, processorArchitecture=MSIL">
-      <HintPath>3rd\ZXing.Net.0.16.4\lib\net461\zxing.presentation.dll</HintPath>
+    <Reference Include="zxing.presentation, Version=0.16.5.0, Culture=neutral, PublicKeyToken=4e88037ac681fe60, processorArchitecture=MSIL">
+      <HintPath>..\packages\ZXing.Net.0.16.5\lib\net47\zxing.presentation.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
@@ -162,8 +161,8 @@
     <Compile Include="Controller\Service\Sip003Plugin.cs" />
     <Compile Include="Proxy\Socks5Proxy.cs" />
     <Compile Include="Settings.cs" />
-    <Compile Include="StringEx.cs" />
     <Compile Include="Controller\System\Hotkeys\Hotkeys.cs" />
+    <Compile Include="StringEx.cs" />
     <Compile Include="Util\ProcessManagement\Job.cs" />
     <Compile Include="Util\ProcessManagement\ThreadUtil.cs" />
     <Compile Include="Util\Sockets\LineReader.cs" />
@@ -291,11 +290,6 @@
       <ProductName>.NET Framework 3.5 SP1 Client Profile</ProductName>
       <Install>false</Install>
     </BootstrapperPackage>
-    <BootstrapperPackage Include="Microsoft.Net.Framework.2.0">
-      <Visible>False</Visible>
-      <ProductName>.NET Framework 2.0 %28x86%29</ProductName>
-      <Install>false</Install>
-    </BootstrapperPackage>
     <BootstrapperPackage Include="Microsoft.Net.Framework.3.0">
       <Visible>False</Visible>
       <ProductName>.NET Framework 3.0 %28x86%29</ProductName>
@@ -318,51 +312,15 @@
     </BootstrapperPackage>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
-  <UsingTask TaskName="CosturaCleanup" AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v4.0.dll" TaskFactory="CodeTaskFactory">
-    <ParameterGroup>
-      <Config Output="false" Required="true" ParameterType="Microsoft.Build.Framework.ITaskItem" />
-      <Files Output="false" Required="true" ParameterType="Microsoft.Build.Framework.ITaskItem[]" />
-    </ParameterGroup>
-    <Task Evaluate="true">
-      <Reference xmlns="http://schemas.microsoft.com/developer/msbuild/2003" Include="System.Xml" />
-      <Reference xmlns="http://schemas.microsoft.com/developer/msbuild/2003" Include="System.Xml.Linq" />
-      <Using xmlns="http://schemas.microsoft.com/developer/msbuild/2003" Namespace="System" />
-      <Using xmlns="http://schemas.microsoft.com/developer/msbuild/2003" Namespace="System.IO" />
-      <Using xmlns="http://schemas.microsoft.com/developer/msbuild/2003" Namespace="System.Xml.Linq" />
-      <Code xmlns="http://schemas.microsoft.com/developer/msbuild/2003" Type="Fragment" Language="cs"><![CDATA[
-var config = XElement.Load(Config.ItemSpec).Elements("Costura").FirstOrDefault();
-
-if (config == null) return true;
-
-var excludedAssemblies = new List<string>();
-var attribute = config.Attribute("ExcludeAssemblies");
-if (attribute != null)
-    foreach (var item in attribute.Value.Split('|').Select(x => x.Trim()).Where(x => x != string.Empty))
-        excludedAssemblies.Add(item);
-var element = config.Element("ExcludeAssemblies");
-if (element != null)
-    foreach (var item in element.Value.Split(new[] { "\r\n", "\n" }, StringSplitOptions.RemoveEmptyEntries).Select(x => x.Trim()).Where(x => x != string.Empty))
-        excludedAssemblies.Add(item);
-
-var filesToCleanup = Files.Select(f => f.ItemSpec).Where(f => !excludedAssemblies.Contains(Path.GetFileNameWithoutExtension(f), StringComparer.InvariantCultureIgnoreCase));
-
-foreach (var item in filesToCleanup)
-  File.Delete(item);
-]]></Code>
-    </Task>
-  </UsingTask>
-  <Target Name="CleanReferenceCopyLocalPaths" AfterTargets="AfterBuild;NonWinFodyTarget">
-    <CosturaCleanup Config="FodyWeavers.xml" Files="@(ReferenceCopyLocalPaths->'$(OutDir)%(DestinationSubDirectory)%(Filename)%(Extension)')" />
-  </Target>
+  <Import Project="..\packages\Fody.4.2.1\build\Fody.targets" Condition="Exists('..\packages\Fody.4.2.1\build\Fody.targets')" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
     </PropertyGroup>
-    <Error Condition="!Exists('3rd\Costura.Fody.3.3.2\build\Costura.Fody.props')" Text="$([System.String]::Format('$(ErrorText)', '3rd\Costura.Fody.3.3.2\build\Costura.Fody.props'))" />
-    <Error Condition="!Exists('3rd\Caseless.Fody.1.8.3\build\Caseless.Fody.props')" Text="$([System.String]::Format('$(ErrorText)', '3rd\Caseless.Fody.1.8.3\build\Caseless.Fody.props'))" />
-    <Error Condition="!Exists('3rd\Fody.4.0.0\build\Fody.targets')" Text="$([System.String]::Format('$(ErrorText)', '3rd\Fody.4.0.0\build\Fody.targets'))" />
+    <Error Condition="!Exists('..\packages\Fody.4.2.1\build\Fody.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Fody.4.2.1\build\Fody.targets'))" />
+    <Error Condition="!Exists('..\packages\Caseless.Fody.1.8.3\build\Caseless.Fody.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Caseless.Fody.1.8.3\build\Caseless.Fody.props'))" />
+    <Error Condition="!Exists('..\packages\Costura.Fody.3.3.3\build\Costura.Fody.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Costura.Fody.3.3.3\build\Costura.Fody.props'))" />
   </Target>
-  <Import Project="3rd\Fody.4.0.0\build\Fody.targets" Condition="Exists('3rd\Fody.4.0.0\build\Fody.targets')" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
   <Target Name="BeforeBuild">
diff --git a/test/ShadowsocksTest.csproj b/test/ShadowsocksTest.csproj
index d85a006e..c21ab66b 100644
--- a/test/ShadowsocksTest.csproj
+++ b/test/ShadowsocksTest.csproj
@@ -36,7 +36,7 @@
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="GlobalHotKey, Version=1.1.0.0, Culture=neutral, processorArchitecture=MSIL">
-      <HintPath>..\shadowsocks-csharp\3rd\GlobalHotKey.1.1.0\lib\GlobalHotKey.dll</HintPath>
+      <HintPath>..\packages\GlobalHotKey.1.1.0\lib\GlobalHotKey.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Management" />
diff --git a/test/packages.config b/test/packages.config
index a32f7c2d..b0cd2533 100644
--- a/test/packages.config
+++ b/test/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="GlobalHotKey" version="1.1.0" targetFramework="net462" />
+  <package id="GlobalHotKey" version="1.1.0" targetFramework="net472" />
 </packages>
\ No newline at end of file