diff --git a/build/dependencies.props b/build/dependencies.props
index 8738a88691..0a6c8d6eb5 100644
--- a/build/dependencies.props
+++ b/build/dependencies.props
@@ -1,7 +1,6 @@
 <Project>
   <PropertyGroup>
     <AspNetCoreVersion>2.0.0-*</AspNetCoreVersion>
-    <CoreFxVersion>4.3.0</CoreFxVersion>
     <InternalAspNetCoreSdkVersion>2.1.0-*</InternalAspNetCoreSdkVersion>
     <MoqVersion>4.7.1</MoqVersion>
     <NETStandardImplicitPackageVersion>$(BundledNETStandardPackageVersion)</NETStandardImplicitPackageVersion>
diff --git a/samples/ElmPageSample/ElmPageSample.csproj b/samples/ElmPageSample/ElmPageSample.csproj
index baef48eefe..d1ae445921 100644
--- a/samples/ElmPageSample/ElmPageSample.csproj
+++ b/samples/ElmPageSample/ElmPageSample.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk.Web">
+<Project Sdk="Microsoft.NET.Sdk.Web">
 
   <Import Project="..\..\build\dependencies.props" />
 
@@ -13,7 +13,6 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.Server.IISIntegration" Version="$(AspNetCoreVersion)" />
     <PackageReference Include="Microsoft.AspNetCore.Server.Kestrel" Version="$(AspNetCoreVersion)" />
-    <PackageReference Include="System.Security.Claims" Version="$(CoreFxVersion)" />
   </ItemGroup>
 
 </Project>
diff --git a/src/Microsoft.AspNetCore.Diagnostics/Microsoft.AspNetCore.Diagnostics.csproj b/src/Microsoft.AspNetCore.Diagnostics/Microsoft.AspNetCore.Diagnostics.csproj
index 57dd503cdd..424264972a 100644
--- a/src/Microsoft.AspNetCore.Diagnostics/Microsoft.AspNetCore.Diagnostics.csproj
+++ b/src/Microsoft.AspNetCore.Diagnostics/Microsoft.AspNetCore.Diagnostics.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <Import Project="..\..\build\common.props" />
 
@@ -29,8 +29,6 @@
     <PackageReference Include="Microsoft.Extensions.StackTrace.Sources" Version="$(AspNetCoreVersion)" PrivateAssets="All"/>
     <PackageReference Include="Microsoft.Extensions.TaskCache.Sources" Version="$(AspNetCoreVersion)" PrivateAssets="All"/>
     <PackageReference Include="Microsoft.Extensions.TypeNameHelper.Sources" Version="$(AspNetCoreVersion)" PrivateAssets="All"/>
-    <PackageReference Include="System.Diagnostics.DiagnosticSource" Version="$(CoreFxVersion)" />
-    <PackageReference Include="System.Diagnostics.StackTrace" Version="$(CoreFxVersion)" />
     <DotNetCliToolReference Include="RazorPageGenerator" Version="$(AspNetCoreVersion)" />
   </ItemGroup>
 
diff --git a/src/Microsoft.AspNetCore.MiddlewareAnalysis/Microsoft.AspNetCore.MiddlewareAnalysis.csproj b/src/Microsoft.AspNetCore.MiddlewareAnalysis/Microsoft.AspNetCore.MiddlewareAnalysis.csproj
index 09bebafe20..cdbb866cd6 100644
--- a/src/Microsoft.AspNetCore.MiddlewareAnalysis/Microsoft.AspNetCore.MiddlewareAnalysis.csproj
+++ b/src/Microsoft.AspNetCore.MiddlewareAnalysis/Microsoft.AspNetCore.MiddlewareAnalysis.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <Import Project="..\..\build\common.props" />
 
@@ -13,7 +13,6 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.Hosting.Abstractions" Version="$(AspNetCoreVersion)" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="$(AspNetCoreVersion)" />
-    <PackageReference Include="System.Diagnostics.DiagnosticSource" Version="$(CoreFxVersion)" />
   </ItemGroup>
 
 </Project>