diff --git a/build/common.props b/build/common.props
index b15eb44161..dd352ea095 100644
--- a/build/common.props
+++ b/build/common.props
@@ -1,5 +1,6 @@
-<Project ToolsVersion="15.0">
+<Project>
 
+  <Import Project="dependencies.props" />
   <Import Project="..\version.props" />
 
   <PropertyGroup>
@@ -9,8 +10,6 @@
     <AssemblyOriginatorKeyFile>$(MSBuildThisFileDirectory)Key.snk</AssemblyOriginatorKeyFile>
     <SignAssembly>true</SignAssembly>
     <PublicSign Condition="'$(OS)' != 'Windows_NT'">true</PublicSign>
-    <NetCoreAppImplicitPackageVersion>1.2.0-*</NetCoreAppImplicitPackageVersion>
-    <NetStandardImplicitPackageVersion>1.6.2-*</NetStandardImplicitPackageVersion>
     <VersionSuffix Condition="'$(VersionSuffix)'!='' AND '$(BuildNumber)' != ''">$(VersionSuffix)-$(BuildNumber)</VersionSuffix>
   </PropertyGroup>
 
@@ -22,4 +21,4 @@
     <PackageReference Include="NETStandard.Library" Version="$(NetStandardImplicitPackageVersion)" />
   </ItemGroup>
 
-</Project>
\ No newline at end of file
+</Project>
diff --git a/build/dependencies.props b/build/dependencies.props
new file mode 100644
index 0000000000..e704edaec0
--- /dev/null
+++ b/build/dependencies.props
@@ -0,0 +1,6 @@
+<Project>
+  <PropertyGroup>
+    <NetStandardImplicitPackageVersion>1.6.1</NetStandardImplicitPackageVersion>
+    <CoreFxVersion>4.3.0</CoreFxVersion>
+  </PropertyGroup>
+</Project>
diff --git a/shared/sources.csproj b/shared/sources.csproj
index d994892451..059f95ae26 100644
--- a/shared/sources.csproj
+++ b/shared/sources.csproj
@@ -1,5 +1,5 @@
 <!-- this is a dummy project to workaround https://github.com/NuGet/Home/issues/4254 -->
-<Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
+<Project Sdk="Microsoft.NET.Sdk">
   <Import Project="..\build\common.props" />
 
   <PropertyGroup>
@@ -25,4 +25,4 @@
              Targets="Pack"
              Properties="PackageVersion=$(Version);PackageId=%(Packages.FileName)%(Packages.Extension);NoBuild=true" />
   </Target>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/src/Microsoft.AspNetCore.Razor.Evolution/Microsoft.AspNetCore.Razor.Evolution.csproj b/src/Microsoft.AspNetCore.Razor.Evolution/Microsoft.AspNetCore.Razor.Evolution.csproj
index a05be33a45..ccfc56a5a2 100644
--- a/src/Microsoft.AspNetCore.Razor.Evolution/Microsoft.AspNetCore.Razor.Evolution.csproj
+++ b/src/Microsoft.AspNetCore.Razor.Evolution/Microsoft.AspNetCore.Razor.Evolution.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <Import Project="..\..\build\common.props" />
 
@@ -11,7 +11,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-     <PackageReference Include="Microsoft.Extensions.HashCodeCombiner.Sources" Version="1.2.0-*" PrivateAssets="All" /> 
+     <PackageReference Include="Microsoft.Extensions.HashCodeCombiner.Sources" Version="1.2.0-*" PrivateAssets="All" />
   </ItemGroup>
 
 </Project>
diff --git a/src/Microsoft.AspNetCore.Razor.Runtime/Microsoft.AspNetCore.Razor.Runtime.csproj b/src/Microsoft.AspNetCore.Razor.Runtime/Microsoft.AspNetCore.Razor.Runtime.csproj
index b5835d9bf5..3d455f522f 100644
--- a/src/Microsoft.AspNetCore.Razor.Runtime/Microsoft.AspNetCore.Razor.Runtime.csproj
+++ b/src/Microsoft.AspNetCore.Razor.Runtime/Microsoft.AspNetCore.Razor.Runtime.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
+<Project Sdk="Microsoft.NET.Sdk">
   <Import Project="..\..\build\common.props" />
   <PropertyGroup>
     <Summary>Runtime components for rendering Razor pages and implementing tag helpers.</Summary>
@@ -23,6 +23,6 @@ Microsoft.AspNetCore.Razor.TagHelpers.ITagHelper</Description>
     <PackageReference Include="Microsoft.Extensions.TaskCache.Sources" Version="1.2.0-*" PrivateAssets="All" />
   </ItemGroup>
   <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
-    <PackageReference Include="System.Reflection.TypeExtensions" Version="4.4.0-*" />
+    <PackageReference Include="System.Reflection.TypeExtensions" Version="$(CoreFxVersion)" />
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/src/Microsoft.AspNetCore.Razor/Microsoft.AspNetCore.Razor.csproj b/src/Microsoft.AspNetCore.Razor/Microsoft.AspNetCore.Razor.csproj
index e6a837a544..ced0b04dc5 100644
--- a/src/Microsoft.AspNetCore.Razor/Microsoft.AspNetCore.Razor.csproj
+++ b/src/Microsoft.AspNetCore.Razor/Microsoft.AspNetCore.Razor.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <Import Project="..\..\build\common.props" />
 
@@ -11,11 +11,11 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.HashCodeCombiner.Sources" Version="1.2.0-*" PrivateAssets="All" /> 
+    <PackageReference Include="Microsoft.Extensions.HashCodeCombiner.Sources" Version="1.2.0-*" PrivateAssets="All" />
   </ItemGroup>
 
   <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.3' ">
-    <PackageReference Include="System.Threading.Thread" Version="4.4.0-*" />
+    <PackageReference Include="System.Threading.Thread" Version="$(CoreFxVersion)" />
   </ItemGroup>
 
 </Project>
diff --git a/src/Microsoft.CodeAnalysis.Razor.Workspaces/Microsoft.CodeAnalysis.Razor.Workspaces.csproj b/src/Microsoft.CodeAnalysis.Razor.Workspaces/Microsoft.CodeAnalysis.Razor.Workspaces.csproj
index b6a2b5bae6..281402ee73 100644
--- a/src/Microsoft.CodeAnalysis.Razor.Workspaces/Microsoft.CodeAnalysis.Razor.Workspaces.csproj
+++ b/src/Microsoft.CodeAnalysis.Razor.Workspaces/Microsoft.CodeAnalysis.Razor.Workspaces.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
+<Project Sdk="Microsoft.NET.Sdk">
   <Import Project="..\..\build\common.props" />
   <PropertyGroup>
     <Description>Razor is a markup syntax for adding server-side logic to web pages. This package contains the Razor design-time infrastructure.</Description>
@@ -13,4 +13,4 @@
     <ProjectReference Include="..\Microsoft.AspNetCore.Razor.Evolution\Microsoft.AspNetCore.Razor.Evolution.csproj" />
     <ProjectReference Include="..\Microsoft.CodeAnalysis.Razor\Microsoft.CodeAnalysis.Razor.csproj" />
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/src/Microsoft.CodeAnalysis.Razor/Microsoft.CodeAnalysis.Razor.csproj b/src/Microsoft.CodeAnalysis.Razor/Microsoft.CodeAnalysis.Razor.csproj
index bcf1ad7d75..4cc61a6044 100644
--- a/src/Microsoft.CodeAnalysis.Razor/Microsoft.CodeAnalysis.Razor.csproj
+++ b/src/Microsoft.CodeAnalysis.Razor/Microsoft.CodeAnalysis.Razor.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
+<Project Sdk="Microsoft.NET.Sdk">
   <Import Project="..\..\build\common.props" />
   <PropertyGroup>
     <Description>Razor is a markup syntax for adding server-side logic to web pages. This package contains the Razor design-time infrastructure.</Description>
@@ -13,4 +13,4 @@
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="1.3.0" />
     <ProjectReference Include="..\Microsoft.AspNetCore.Razor.Evolution\Microsoft.AspNetCore.Razor.Evolution.csproj" />
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/src/Microsoft.CodeAnalysis.Remote.Razor/Microsoft.CodeAnalysis.Remote.Razor.csproj b/src/Microsoft.CodeAnalysis.Remote.Razor/Microsoft.CodeAnalysis.Remote.Razor.csproj
index ee883a8773..eac539c84e 100644
--- a/src/Microsoft.CodeAnalysis.Remote.Razor/Microsoft.CodeAnalysis.Remote.Razor.csproj
+++ b/src/Microsoft.CodeAnalysis.Remote.Razor/Microsoft.CodeAnalysis.Remote.Razor.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
+<Project Sdk="Microsoft.NET.Sdk">
   <Import Project="..\..\build\common.props" />
   <PropertyGroup>
     <Description>Razor is a markup syntax for adding server-side logic to web pages. This package contains the Razor design-time infrastructure.</Description>
@@ -15,4 +15,4 @@
     <ProjectReference Include="..\Microsoft.CodeAnalysis.Razor.Workspaces\Microsoft.CodeAnalysis.Razor.Workspaces.csproj" />
     <ProjectReference Include="..\Microsoft.AspNetCore.Razor.Evolution\Microsoft.AspNetCore.Razor.Evolution.csproj" />
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/src/Microsoft.VisualStudio.LanguageServices.Razor/Microsoft.VisualStudio.LanguageServices.Razor.csproj b/src/Microsoft.VisualStudio.LanguageServices.Razor/Microsoft.VisualStudio.LanguageServices.Razor.csproj
index 507256e96d..9c0b7060de 100644
--- a/src/Microsoft.VisualStudio.LanguageServices.Razor/Microsoft.VisualStudio.LanguageServices.Razor.csproj
+++ b/src/Microsoft.VisualStudio.LanguageServices.Razor/Microsoft.VisualStudio.LanguageServices.Razor.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <Import Project="..\..\build\common.props" />
 
@@ -22,4 +22,4 @@
     <ProjectReference Include="..\..\src\Microsoft.AspNetCore.Razor.Evolution\Microsoft.AspNetCore.Razor.Evolution.csproj" />
   </ItemGroup>
 
-</Project>
\ No newline at end of file
+</Project>
diff --git a/src/RazorPageGenerator/RazorPageGenerator.csproj b/src/RazorPageGenerator/RazorPageGenerator.csproj
index 82e086681d..11dd8e30d4 100644
--- a/src/RazorPageGenerator/RazorPageGenerator.csproj
+++ b/src/RazorPageGenerator/RazorPageGenerator.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk.Web" ToolsVersion="15.0">
+<Project Sdk="Microsoft.NET.Sdk.Web">
 
   <Import Project="..\..\build\common.props" />
 
diff --git a/test/Microsoft.AspNetCore.Razor.Evolution.Test/Microsoft.AspNetCore.Razor.Evolution.Test.csproj b/test/Microsoft.AspNetCore.Razor.Evolution.Test/Microsoft.AspNetCore.Razor.Evolution.Test.csproj
index 0de9da328c..ff460eea45 100644
--- a/test/Microsoft.AspNetCore.Razor.Evolution.Test/Microsoft.AspNetCore.Razor.Evolution.Test.csproj
+++ b/test/Microsoft.AspNetCore.Razor.Evolution.Test/Microsoft.AspNetCore.Razor.Evolution.Test.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
+<Project Sdk="Microsoft.NET.Sdk">
   <Import Project="..\..\build\common.props" />
   <PropertyGroup>
     <TargetFrameworks>netcoreapp1.1;net46</TargetFrameworks>
@@ -20,4 +20,4 @@
   <ItemGroup>
     <Service Include="{82a7f48d-3b50-4b1e-b82e-3ada8210c358}" />
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/test/Microsoft.AspNetCore.Razor.Runtime.Test/Microsoft.AspNetCore.Razor.Runtime.Test.csproj b/test/Microsoft.AspNetCore.Razor.Runtime.Test/Microsoft.AspNetCore.Razor.Runtime.Test.csproj
index 51a5b6b7d7..713286e28a 100644
--- a/test/Microsoft.AspNetCore.Razor.Runtime.Test/Microsoft.AspNetCore.Razor.Runtime.Test.csproj
+++ b/test/Microsoft.AspNetCore.Razor.Runtime.Test/Microsoft.AspNetCore.Razor.Runtime.Test.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
+<Project Sdk="Microsoft.NET.Sdk">
   <Import Project="..\..\build\common.props" />
   <PropertyGroup>
     <TargetFrameworks>netcoreapp1.1;net46</TargetFrameworks>
@@ -10,17 +10,14 @@
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\src\Microsoft.AspNetCore.Razor.Runtime\Microsoft.AspNetCore.Razor.Runtime.csproj" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.0.0-*" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.2.0-*" />
     <PackageReference Include="Microsoft.AspNetCore.Testing" Version="1.2.0-*" />
     <PackageReference Include="Microsoft.Extensions.WebEncoders" Version="1.2.0-*" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.0.0-*" />
     <PackageReference Include="Moq" Version="4.6.36-*" />
     <PackageReference Include="xunit" Version="2.2.0-*" />
-  </ItemGroup>
-  <ItemGroup Condition=" '$(TargetFramework)' == 'netcoreapp1.1' ">
-    <PackageReference Include="System.Diagnostics.TraceSource" Version="4.4.0-*" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.2.0-*" />
   </ItemGroup>
   <ItemGroup>
     <Service Include="{82a7f48d-3b50-4b1e-b82e-3ada8210c358}" />
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/test/Microsoft.AspNetCore.Razor.Test/Microsoft.AspNetCore.Razor.Test.csproj b/test/Microsoft.AspNetCore.Razor.Test/Microsoft.AspNetCore.Razor.Test.csproj
index be8485f5e4..6db5b4c29d 100644
--- a/test/Microsoft.AspNetCore.Razor.Test/Microsoft.AspNetCore.Razor.Test.csproj
+++ b/test/Microsoft.AspNetCore.Razor.Test/Microsoft.AspNetCore.Razor.Test.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
+<Project Sdk="Microsoft.NET.Sdk">
   <Import Project="..\..\build\common.props" />
   <PropertyGroup>
     <TargetFrameworks>netcoreapp1.1;net452</TargetFrameworks>
@@ -13,17 +13,14 @@
   <ItemGroup>
     <ProjectReference Include="..\..\src\Microsoft.AspNetCore.Razor\Microsoft.AspNetCore.Razor.csproj" />
     <ProjectReference Include="..\..\src\Microsoft.AspNetCore.Razor.Runtime\Microsoft.AspNetCore.Razor.Runtime.csproj" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.0.0-*" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.2.0-*" />
     <PackageReference Include="Microsoft.AspNetCore.Testing" Version="1.2.0-*" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.0.0-*" />
     <PackageReference Include="Moq" Version="4.6.36-*" />
     <PackageReference Include="Newtonsoft.Json" Version="9.0.1" />
     <PackageReference Include="xunit" Version="2.2.0-*" />
-  </ItemGroup>
-  <ItemGroup Condition=" '$(TargetFramework)' == 'netcoreapp1.1' ">
-    <PackageReference Include="System.Diagnostics.TraceSource" Version="4.4.0-*" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.2.0-*" />
   </ItemGroup>
   <ItemGroup>
     <Service Include="{82a7f48d-3b50-4b1e-b82e-3ada8210c358}" />
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/test/Microsoft.CodeAnalysis.Razor.Test/Microsoft.CodeAnalysis.Razor.Test.csproj b/test/Microsoft.CodeAnalysis.Razor.Test/Microsoft.CodeAnalysis.Razor.Test.csproj
index b7227529b0..5afbd06d84 100644
--- a/test/Microsoft.CodeAnalysis.Razor.Test/Microsoft.CodeAnalysis.Razor.Test.csproj
+++ b/test/Microsoft.CodeAnalysis.Razor.Test/Microsoft.CodeAnalysis.Razor.Test.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
+<Project Sdk="Microsoft.NET.Sdk">
   <Import Project="..\..\build\common.props" />
   <PropertyGroup>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
@@ -26,4 +26,4 @@
   <ItemGroup>
     <Service Include="{82a7f48d-3b50-4b1e-b82e-3ada8210c358}" />
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/tooling/Microsoft.VisualStudio.RazorExtension/Microsoft.VisualStudio.RazorExtension.csproj b/tooling/Microsoft.VisualStudio.RazorExtension/Microsoft.VisualStudio.RazorExtension.csproj
index 9eb3d00993..b5cdd0ff72 100644
--- a/tooling/Microsoft.VisualStudio.RazorExtension/Microsoft.VisualStudio.RazorExtension.csproj
+++ b/tooling/Microsoft.VisualStudio.RazorExtension/Microsoft.VisualStudio.RazorExtension.csproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="15.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="..\..\packages\Microsoft.VSSDK.BuildTools.15.0.25901-RC\build\Microsoft.VSSDK.BuildTools.props" Condition="Exists('..\..\packages\Microsoft.VSSDK.BuildTools.15.0.25901-RC\build\Microsoft.VSSDK.BuildTools.props')" />
   <PropertyGroup>
     <MinimumVisualStudioVersion>15.0</MinimumVisualStudioVersion>
@@ -404,4 +404,4 @@
     <Error Condition="!Exists('..\..\packages\Microsoft.VSSDK.BuildTools.15.0.25901-RC\build\Microsoft.VSSDK.BuildTools.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\Microsoft.VSSDK.BuildTools.15.0.25901-RC\build\Microsoft.VSSDK.BuildTools.targets'))" />
   </Target>
   <Import Project="..\..\packages\Microsoft.VSSDK.BuildTools.15.0.25901-RC\build\Microsoft.VSSDK.BuildTools.targets" Condition="Exists('..\..\packages\Microsoft.VSSDK.BuildTools.15.0.25901-RC\build\Microsoft.VSSDK.BuildTools.targets')" />
-</Project>
\ No newline at end of file
+</Project>