diff --git a/shadowsocks-csharp/FodyWeavers.xml b/shadowsocks-csharp/FodyWeavers.xml
index 625f36e3..576cb339 100644
--- a/shadowsocks-csharp/FodyWeavers.xml
+++ b/shadowsocks-csharp/FodyWeavers.xml
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Weavers>
+<Weavers xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="FodyWeavers.xsd">
   <Caseless StringComparison="Ordinal" />
-  <Costura />
 </Weavers>
\ No newline at end of file
diff --git a/shadowsocks-csharp/FodyWeavers.xsd b/shadowsocks-csharp/FodyWeavers.xsd
new file mode 100644
index 00000000..e9cd8f0e
--- /dev/null
+++ b/shadowsocks-csharp/FodyWeavers.xsd
@@ -0,0 +1,112 @@
+<?xml version="1.0" encoding="utf-8"?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
+  <!-- This file was generated by Fody. Manual changes to this file will be lost when your project is rebuilt. -->
+  <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>
+              <xs:element minOccurs="0" maxOccurs="1" name="ExcludeAssemblies" type="xs:string">
+                <xs:annotation>
+                  <xs:documentation>A list of assembly names to exclude from the default action of "embed all Copy Local references", delimited with line breaks</xs:documentation>
+                </xs:annotation>
+              </xs:element>
+              <xs:element minOccurs="0" maxOccurs="1" name="IncludeAssemblies" type="xs:string">
+                <xs:annotation>
+                  <xs:documentation>A list of assembly names to include from the default action of "embed all Copy Local references", delimited with line breaks.</xs:documentation>
+                </xs:annotation>
+              </xs:element>
+              <xs:element minOccurs="0" maxOccurs="1" name="Unmanaged32Assemblies" type="xs:string">
+                <xs:annotation>
+                  <xs:documentation>A list of unmanaged 32 bit assembly names to include, delimited with line breaks.</xs:documentation>
+                </xs:annotation>
+              </xs:element>
+              <xs:element minOccurs="0" maxOccurs="1" name="Unmanaged64Assemblies" type="xs:string">
+                <xs:annotation>
+                  <xs:documentation>A list of unmanaged 64 bit assembly names to include, delimited with line breaks.</xs:documentation>
+                </xs:annotation>
+              </xs:element>
+              <xs:element minOccurs="0" maxOccurs="1" name="PreloadOrder" type="xs:string">
+                <xs:annotation>
+                  <xs:documentation>The order of preloaded assemblies, delimited with line breaks.</xs:documentation>
+                </xs:annotation>
+              </xs:element>
+            </xs:all>
+            <xs:attribute name="CreateTemporaryAssemblies" type="xs:boolean">
+              <xs:annotation>
+                <xs:documentation>This will copy embedded files to disk before loading them into memory. This is helpful for some scenarios that expected an assembly to be loaded from a physical file.</xs:documentation>
+              </xs:annotation>
+            </xs:attribute>
+            <xs:attribute name="IncludeDebugSymbols" type="xs:boolean">
+              <xs:annotation>
+                <xs:documentation>Controls if .pdbs for reference assemblies are also embedded.</xs:documentation>
+              </xs:annotation>
+            </xs:attribute>
+            <xs:attribute name="DisableCompression" type="xs:boolean">
+              <xs:annotation>
+                <xs:documentation>Embedded assemblies are compressed by default, and uncompressed when they are loaded. You can turn compression off with this option.</xs:documentation>
+              </xs:annotation>
+            </xs:attribute>
+            <xs:attribute name="DisableCleanup" type="xs:boolean">
+              <xs:annotation>
+                <xs:documentation>As part of Costura, embedded assemblies are no longer included as part of the build. This cleanup can be turned off.</xs:documentation>
+              </xs:annotation>
+            </xs:attribute>
+            <xs:attribute name="LoadAtModuleInit" type="xs:boolean">
+              <xs:annotation>
+                <xs:documentation>Costura by default will load as part of the module initialization. This flag disables that behavior. Make sure you call CosturaUtility.Initialize() somewhere in your code.</xs:documentation>
+              </xs:annotation>
+            </xs:attribute>
+            <xs:attribute name="IgnoreSatelliteAssemblies" type="xs:boolean">
+              <xs:annotation>
+                <xs:documentation>Costura will by default use assemblies with a name like 'resources.dll' as a satellite resource and prepend the output path. This flag disables that behavior.</xs:documentation>
+              </xs:annotation>
+            </xs:attribute>
+            <xs:attribute name="ExcludeAssemblies" type="xs:string">
+              <xs:annotation>
+                <xs:documentation>A list of assembly names to exclude from the default action of "embed all Copy Local references", delimited with |</xs:documentation>
+              </xs:annotation>
+            </xs:attribute>
+            <xs:attribute name="IncludeAssemblies" type="xs:string">
+              <xs:annotation>
+                <xs:documentation>A list of assembly names to include from the default action of "embed all Copy Local references", delimited with |.</xs:documentation>
+              </xs:annotation>
+            </xs:attribute>
+            <xs:attribute name="Unmanaged32Assemblies" type="xs:string">
+              <xs:annotation>
+                <xs:documentation>A list of unmanaged 32 bit assembly names to include, delimited with |.</xs:documentation>
+              </xs:annotation>
+            </xs:attribute>
+            <xs:attribute name="Unmanaged64Assemblies" type="xs:string">
+              <xs:annotation>
+                <xs:documentation>A list of unmanaged 64 bit assembly names to include, delimited with |.</xs:documentation>
+              </xs:annotation>
+            </xs:attribute>
+            <xs:attribute name="PreloadOrder" type="xs:string">
+              <xs:annotation>
+                <xs:documentation>The order of preloaded assemblies, delimited with |.</xs:documentation>
+              </xs:annotation>
+            </xs:attribute>
+          </xs:complexType>
+        </xs:element>
+      </xs:all>
+      <xs:attribute name="VerifyAssembly" type="xs:boolean">
+        <xs:annotation>
+          <xs:documentation>'true' to run assembly verification (PEVerify) on the target assembly after all weavers have been executed.</xs:documentation>
+        </xs:annotation>
+      </xs:attribute>
+      <xs:attribute name="VerifyIgnoreCodes" type="xs:string">
+        <xs:annotation>
+          <xs:documentation>A comma-separated list of error codes that can be safely ignored in assembly verification.</xs:documentation>
+        </xs:annotation>
+      </xs:attribute>
+      <xs:attribute name="GenerateXsd" type="xs:boolean">
+        <xs:annotation>
+          <xs:documentation>'false' to turn off automatic generation of the XML Schema file.</xs:documentation>
+        </xs:annotation>
+      </xs:attribute>
+    </xs:complexType>
+  </xs:element>
+</xs:schema>
\ No newline at end of file
diff --git a/shadowsocks-csharp/packages.config b/shadowsocks-csharp/packages.config
index 9f605d30..7056bb05 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="1.7.3" targetFramework="net462" developmentDependency="true" />
-  <package id="Costura.Fody" version="1.6.2" targetFramework="net462" developmentDependency="true" />
-  <package id="Fody" version="2.3.23" targetFramework="net462" developmentDependency="true" />
+  <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="3.3.5" targetFramework="net462" developmentDependency="true" />
   <package id="GlobalHotKey" version="1.1.0" targetFramework="net462" />
-  <package id="Newtonsoft.Json" version="10.0.3" 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="0.16.2" targetFramework="net462" />
+  <package id="ZXing.Net" version="0.16.4" targetFramework="net462" />
 </packages>
\ No newline at end of file
diff --git a/shadowsocks-csharp/shadowsocks-csharp.csproj b/shadowsocks-csharp/shadowsocks-csharp.csproj
index 17f162f0..ac8f35b9 100644
--- a/shadowsocks-csharp/shadowsocks-csharp.csproj
+++ b/shadowsocks-csharp/shadowsocks-csharp.csproj
@@ -1,5 +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')" />
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
@@ -66,12 +68,11 @@
     <ApplicationManifest>app.manifest</ApplicationManifest>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="Caseless, Version=0.0.0.0, Culture=neutral, PublicKeyToken=409b3227471b0f0d, processorArchitecture=MSIL">
-      <HintPath>3rd\Caseless.Fody.1.7.3\lib\net452\Caseless.dll</HintPath>
+    <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>
     </Reference>
-    <Reference Include="Costura, Version=1.6.2.0, Culture=neutral, PublicKeyToken=9919ef960d84173d, processorArchitecture=MSIL">
-      <HintPath>3rd\Costura.Fody.1.6.2\lib\dotnet\Costura.dll</HintPath>
-      <Private>False</Private>
+    <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>
     <Reference Include="GlobalHotKey, Version=1.1.0.0, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>3rd\GlobalHotKey.1.1.0\lib\GlobalHotKey.dll</HintPath>
@@ -79,8 +80,8 @@
     </Reference>
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="Microsoft.VisualBasic" />
-    <Reference Include="Newtonsoft.Json, Version=10.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
-      <HintPath>3rd\Newtonsoft.Json.10.0.3\lib\net45\Newtonsoft.Json.dll</HintPath>
+    <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>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Data" />
@@ -92,11 +93,11 @@
     <Reference Include="System.Windows.Forms.DataVisualization" />
     <Reference Include="System.XML" />
     <Reference Include="WindowsBase" />
-    <Reference Include="zxing, Version=0.16.2.0, Culture=neutral, PublicKeyToken=4e88037ac681fe60, processorArchitecture=MSIL">
-      <HintPath>3rd\ZXing.Net.0.16.2\lib\net461\zxing.dll</HintPath>
+    <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>
-    <Reference Include="zxing.presentation, Version=0.16.2.0, Culture=neutral, PublicKeyToken=4e88037ac681fe60, processorArchitecture=MSIL">
-      <HintPath>3rd\ZXing.Net.0.16.2\lib\net461\zxing.presentation.dll</HintPath>
+    <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>
   </ItemGroup>
   <ItemGroup>
@@ -352,15 +353,15 @@ foreach (var item in filesToCleanup)
   <Target Name="CleanReferenceCopyLocalPaths" AfterTargets="AfterBuild;NonWinFodyTarget">
     <CosturaCleanup Config="FodyWeavers.xml" Files="@(ReferenceCopyLocalPaths->'$(OutDir)%(DestinationSubDirectory)%(Filename)%(Extension)')" />
   </Target>
-  <Import Project="3rd\Fody.2.3.23\build\Fody.targets" Condition="Exists('3rd\Fody.2.3.23\build\Fody.targets')" />
+  <Import Project="3rd\Fody.3.3.5\build\Fody.targets" Condition="Exists('3rd\Fody.3.3.5\build\Fody.targets')" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
     </PropertyGroup>
-    <Error Condition="!Exists('3rd\Fody.2.3.23\build\Fody.targets')" Text="$([System.String]::Format('$(ErrorText)', '3rd\Fody.2.3.23\build\Fody.targets'))" />
-    <Error Condition="!Exists('3rd\Costura.Fody.1.6.2\build\dotnet\Costura.Fody.targets')" Text="$([System.String]::Format('$(ErrorText)', '3rd\Costura.Fody.1.6.2\build\dotnet\Costura.Fody.targets'))" />
+    <Error Condition="!Exists('3rd\Fody.3.3.5\build\Fody.targets')" Text="$([System.String]::Format('$(ErrorText)', '3rd\Fody.3.3.5\build\Fody.targets'))" />
+    <Error Condition="!Exists('3rd\Costura.Fody.3.3.2\build\Costura.Fody.props')" Text="$([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'))" />
   </Target>
-  <Import Project="3rd\Costura.Fody.1.6.2\build\dotnet\Costura.Fody.targets" Condition="Exists('3rd\Costura.Fody.1.6.2\build\dotnet\Costura.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">