diff --git a/BizHawk.Client.Common/BizHawk.Client.Common.csproj b/BizHawk.Client.Common/BizHawk.Client.Common.csproj
index c1b8134315..adaba99594 100644
--- a/BizHawk.Client.Common/BizHawk.Client.Common.csproj
+++ b/BizHawk.Client.Common/BizHawk.Client.Common.csproj
@@ -49,8 +49,7 @@
     <Reference Include="Ionic.Zip">
       <HintPath>..\References\Ionic.Zip.dll</HintPath>
     </Reference>
-    <Reference Include="Newtonsoft.Json, Version=4.5.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed">
-      <SpecificVersion>False</SpecificVersion>
+    <Reference Include="Newtonsoft.Json">
       <HintPath>..\References\Newtonsoft.Json.dll</HintPath>
     </Reference>
     <Reference Include="NLua">
diff --git a/BizHawk.Client.Common/config/ConfigService.cs b/BizHawk.Client.Common/config/ConfigService.cs
index d8e0037b8d..babcec000c 100644
--- a/BizHawk.Client.Common/config/ConfigService.cs
+++ b/BizHawk.Client.Common/config/ConfigService.cs
@@ -17,7 +17,6 @@ namespace BizHawk.Client.Common
 			Serializer = new JsonSerializer
 			{
 				MissingMemberHandling = MissingMemberHandling.Ignore,
-				MissingTypeHandling = MissingTypeHandling.Ignore,
 				TypeNameHandling = TypeNameHandling.Auto,
 				ConstructorHandling = ConstructorHandling.Default,
 
diff --git a/BizHawk.Emulation.Common/BizHawk.Emulation.Common.csproj b/BizHawk.Emulation.Common/BizHawk.Emulation.Common.csproj
index 5dfecb7cfa..3a436fdacf 100644
--- a/BizHawk.Emulation.Common/BizHawk.Emulation.Common.csproj
+++ b/BizHawk.Emulation.Common/BizHawk.Emulation.Common.csproj
@@ -41,8 +41,7 @@
     <LangVersion>8.0</LangVersion>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
+    <Reference Include="Newtonsoft.Json">
       <HintPath>..\References\Newtonsoft.Json.dll</HintPath>
     </Reference>
     <Reference Include="System" />
diff --git a/ExternalCoreProjects/Virtu/Virtu.csproj b/ExternalCoreProjects/Virtu/Virtu.csproj
index e3e9fc67b1..b8275a61c8 100644
--- a/ExternalCoreProjects/Virtu/Virtu.csproj
+++ b/ExternalCoreProjects/Virtu/Virtu.csproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Virtu</RootNamespace>
     <AssemblyName>Virtu</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <TargetFrameworkProfile />
   </PropertyGroup>
@@ -21,6 +21,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -29,6 +30,7 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Newtonsoft.Json">
diff --git a/References/Newtonsoft.Json.dll b/References/Newtonsoft.Json.dll
index 4035c64ace..a04a6ca3aa 100644
Binary files a/References/Newtonsoft.Json.dll and b/References/Newtonsoft.Json.dll differ
diff --git a/References/Virtu.dll b/References/Virtu.dll
index 8d73f2512d..b164b2dc13 100644
Binary files a/References/Virtu.dll and b/References/Virtu.dll differ