diff --git a/shadowsocks-csharp/app.config b/shadowsocks-csharp/app.config
index a7ba1069..c96d7c75 100755
--- a/shadowsocks-csharp/app.config
+++ b/shadowsocks-csharp/app.config
@@ -8,11 +8,11 @@
     <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
       <dependentAssembly>
         <assemblyIdentity name="System.Runtime" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-2.6.8.0" newVersion="2.6.8.0" />
+        <bindingRedirect oldVersion="0.0.0.0-2.6.10.0" newVersion="2.6.10.0" />
       </dependentAssembly>
       <dependentAssembly>
         <assemblyIdentity name="System.Threading.Tasks" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-2.6.8.0" newVersion="2.6.8.0" />
+        <bindingRedirect oldVersion="0.0.0.0-2.6.10.0" newVersion="2.6.10.0" />
       </dependentAssembly>
     </assemblyBinding>
   </runtime>
diff --git a/shadowsocks-csharp/packages.config b/shadowsocks-csharp/packages.config
index cd42cb7e..2230519e 100644
--- a/shadowsocks-csharp/packages.config
+++ b/shadowsocks-csharp/packages.config
@@ -1,11 +1,11 @@
-<?xml version="1.0" encoding="utf-8"?>
-<packages>
-  <package id="Costura.Fody" version="1.3.3.0" targetFramework="net4-client" developmentDependency="true" />
-  <package id="Fody" version="1.29.3" targetFramework="net4-client" developmentDependency="true" />
-  <package id="Microsoft.Bcl" version="1.1.8" targetFramework="net4-client" />
-  <package id="Microsoft.Bcl.Async" version="1.0.168" targetFramework="net4-client" />
-  <package id="Microsoft.Bcl.Build" version="1.0.14" targetFramework="net4-client" />
-  <package id="Microsoft.Net.Http" version="2.0.20710.0" targetFramework="net4-client" />
-  <package id="Newtonsoft.Json" version="7.0.1" targetFramework="net4-client" />
-  <package id="System.Net.Http" version="2.0.20710.0" targetFramework="net4-client" />
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="Costura.Fody" version="1.3.3.0" targetFramework="net4-client" developmentDependency="true" />
+  <package id="Fody" version="1.29.4" targetFramework="net40-client" developmentDependency="true" />
+  <package id="Microsoft.Bcl" version="1.1.10" targetFramework="net40-client" />
+  <package id="Microsoft.Bcl.Async" version="1.0.168" targetFramework="net40-client" />
+  <package id="Microsoft.Bcl.Build" version="1.0.21" targetFramework="net40-client" />
+  <package id="Microsoft.Net.Http" version="2.0.20710.0" targetFramework="net4-client" />
+  <package id="Newtonsoft.Json" version="8.0.2" targetFramework="net40-client" />
+  <package id="System.Net.Http" version="2.0.20710.0" targetFramework="net40-client" />
 </packages>
\ No newline at end of file
diff --git a/shadowsocks-csharp/shadowsocks-csharp.csproj b/shadowsocks-csharp/shadowsocks-csharp.csproj
index 8ce00215..69f7b546 100644
--- a/shadowsocks-csharp/shadowsocks-csharp.csproj
+++ b/shadowsocks-csharp/shadowsocks-csharp.csproj
@@ -69,21 +69,18 @@
     <Reference Include="Microsoft.Threading.Tasks, Version=1.0.12.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
       <HintPath>3rd\Microsoft.Bcl.Async.1.0.168\lib\net40\Microsoft.Threading.Tasks.dll</HintPath>
       <Private>True</Private>
-      <EmbedInteropTypes>False</EmbedInteropTypes>
     </Reference>
     <Reference Include="Microsoft.Threading.Tasks.Extensions, Version=1.0.12.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
       <HintPath>3rd\Microsoft.Bcl.Async.1.0.168\lib\net40\Microsoft.Threading.Tasks.Extensions.dll</HintPath>
       <Private>True</Private>
-      <EmbedInteropTypes>False</EmbedInteropTypes>
     </Reference>
     <Reference Include="Microsoft.Threading.Tasks.Extensions.Desktop, Version=1.0.168.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
       <HintPath>3rd\Microsoft.Bcl.Async.1.0.168\lib\net40\Microsoft.Threading.Tasks.Extensions.Desktop.dll</HintPath>
       <Private>True</Private>
-      <EmbedInteropTypes>False</EmbedInteropTypes>
     </Reference>
     <Reference Include="Microsoft.VisualBasic" />
-    <Reference Include="Newtonsoft.Json, Version=7.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
-      <HintPath>3rd\Newtonsoft.Json.7.0.1\lib\net40\Newtonsoft.Json.dll</HintPath>
+    <Reference Include="Newtonsoft.Json, Version=8.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
+      <HintPath>3rd\Newtonsoft.Json.8.0.2\lib\net40\Newtonsoft.Json.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="PresentationCore" />
@@ -91,10 +88,9 @@
     <Reference Include="System" />
     <Reference Include="System.Data" />
     <Reference Include="System.Drawing" />
-    <Reference Include="System.IO, Version=2.6.8.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>3rd\Microsoft.Bcl.1.1.8\lib\net40\System.IO.dll</HintPath>
+    <Reference Include="System.IO, Version=2.6.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>3rd\Microsoft.Bcl.1.1.10\lib\net40\System.IO.dll</HintPath>
       <Private>True</Private>
-      <EmbedInteropTypes>False</EmbedInteropTypes>
     </Reference>
     <Reference Include="System.Net" />
     <Reference Include="System.Net.Http, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
@@ -105,15 +101,13 @@
       <HintPath>3rd\Microsoft.Net.Http.2.0.20710.0\lib\net40\System.Net.Http.WebRequest.dll</HintPath>
       <Private>True</Private>
     </Reference>
-    <Reference Include="System.Runtime, Version=2.6.8.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>3rd\Microsoft.Bcl.1.1.8\lib\net40\System.Runtime.dll</HintPath>
+    <Reference Include="System.Runtime, Version=2.6.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>3rd\Microsoft.Bcl.1.1.10\lib\net40\System.Runtime.dll</HintPath>
       <Private>True</Private>
-      <EmbedInteropTypes>False</EmbedInteropTypes>
     </Reference>
-    <Reference Include="System.Threading.Tasks, Version=2.6.8.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>3rd\Microsoft.Bcl.1.1.8\lib\net40\System.Threading.Tasks.dll</HintPath>
+    <Reference Include="System.Threading.Tasks, Version=2.6.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>3rd\Microsoft.Bcl.1.1.10\lib\net40\System.Threading.Tasks.dll</HintPath>
       <Private>True</Private>
-      <EmbedInteropTypes>False</EmbedInteropTypes>
     </Reference>
     <Reference Include="System.Windows.Forms" />
     <Reference Include="System.Windows.Forms.DataVisualization" />
@@ -330,18 +324,15 @@
     </BootstrapperPackage>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
-  <Import Project="3rd\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets" Condition="Exists('3rd\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets')" />
-  <Target Name="EnsureBclBuildImported" BeforeTargets="BeforeBuild" Condition="'$(BclBuildImported)' == ''">
-    <Error Condition="!Exists('3rd\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets')" Text="This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=317567." HelpKeyword="BCLBUILD2001" />
-    <Error Condition="Exists('3rd\Microsoft.Bcl.Build.1.0.14\tools\Microsoft.Bcl.Build.targets')" Text="The build restored NuGet packages. Build the project again to include these packages in the build. For more information, see http://go.microsoft.com/fwlink/?LinkID=317568." HelpKeyword="BCLBUILD2002" />
-  </Target>
-  <Import Project="3rd\Fody.1.29.3\build\portable-net+sl+win+wpa+wp\Fody.targets" Condition="Exists('3rd\Fody.1.29.3\build\portable-net+sl+win+wpa+wp\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\Fody.1.29.3\build\portable-net+sl+win+wpa+wp\Fody.targets')" Text="$([System.String]::Format('$(ErrorText)', '3rd\Fody.1.29.3\build\portable-net+sl+win+wpa+wp\Fody.targets'))" />
+    <Error Condition="!Exists('3rd\Microsoft.Bcl.Build.1.0.21\build\Microsoft.Bcl.Build.targets')" Text="$([System.String]::Format('$(ErrorText)', '3rd\Microsoft.Bcl.Build.1.0.21\build\Microsoft.Bcl.Build.targets'))" />
+    <Error Condition="!Exists('3rd\Fody.1.29.4\build\portable-net+sl+win+wpa+wp\Fody.targets')" Text="$([System.String]::Format('$(ErrorText)', '3rd\Fody.1.29.4\build\portable-net+sl+win+wpa+wp\Fody.targets'))" />
   </Target>
+  <Import Project="3rd\Microsoft.Bcl.Build.1.0.21\build\Microsoft.Bcl.Build.targets" Condition="Exists('3rd\Microsoft.Bcl.Build.1.0.21\build\Microsoft.Bcl.Build.targets')" />
+  <Import Project="3rd\Fody.1.29.4\build\portable-net+sl+win+wpa+wp\Fody.targets" Condition="Exists('3rd\Fody.1.29.4\build\portable-net+sl+win+wpa+wp\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">