diff --git a/eng/Packages.props b/eng/Packages.props
index 9e330c75068..1a98130d455 100644
--- a/eng/Packages.props
+++ b/eng/Packages.props
@@ -50,7 +50,7 @@
   </ItemGroup>
 
   <ItemGroup Condition="'$(DotNetBuildFromSource)' != 'true'">
-    <GlobalPackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.0-alpha-004" PrivateAssets="All"/>
+    <GlobalPackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.0" PrivateAssets="All"/>
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/Build/Microsoft.Build.csproj b/src/Build/Microsoft.Build.csproj
index d8ea0d8c500..f90572b462b 100644
--- a/src/Build/Microsoft.Build.csproj
+++ b/src/Build/Microsoft.Build.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <Import Project="..\Shared\FileSystemSources.proj" />
   <Import Project="..\Shared\DebuggingSources.proj" />
@@ -45,11 +45,8 @@
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFrameworkIdentifier)' != '.NETFramework'">
-    <PackageReference Include="System.Diagnostics.TraceSource" />
     <PackageReference Include="System.Reflection.Metadata" />
-    <PackageReference Include="System.Reflection.TypeExtensions" />
-    <PackageReference Include="System.Runtime.Loader" />
-    <PackageReference Include="System.Security.Principal.Windows" Condition="'$(TargetFramework)' == 'netcoreapp2.1'" />
+    <PackageReference Include="System.Security.Principal.Windows" />
     <PackageReference Include="System.Text.Encoding.CodePages" />
     <!-- Need Win32 API on .NET Core to ping registry to determine long path support -->
     <PackageReference Include="Microsoft.Win32.Registry" />
diff --git a/src/Framework/Microsoft.Build.Framework.csproj b/src/Framework/Microsoft.Build.Framework.csproj
index 4481e255400..5983457827a 100644
--- a/src/Framework/Microsoft.Build.Framework.csproj
+++ b/src/Framework/Microsoft.Build.Framework.csproj
@@ -13,9 +13,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="System.Runtime.Serialization.Primitives" Condition="'$(TargetFrameworkIdentifier)' != '.NETFramework'" />
     <PackageReference Include="System.Security.Permissions" Condition="'$(TargetFrameworkIdentifier)' != '.NETFramework'" />
-    <PackageReference Include="System.Threading.Thread" Condition="'$(TargetFrameworkIdentifier)' != '.NETFramework'" />
     <Reference Include="System.Xaml" Condition="'$(TargetFrameworkIdentifier)' == '.NETFramework'" />
   </ItemGroup>
 
diff --git a/src/Samples/Directory.Build.targets b/src/Samples/Directory.Build.targets
index 9bc968b044b..78b52aab854 100644
--- a/src/Samples/Directory.Build.targets
+++ b/src/Samples/Directory.Build.targets
@@ -1,7 +1,7 @@
 <Project>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.0-alpha-004" PrivateAssets="all"/>
+    <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.0" PrivateAssets="all"/>
     <PackageReference Include="Microsoft.VisualStudio.SDK.EmbedInteropTypes" Version="15.0.15" PrivateAssets="All" Condition="'$(TargetFrameworkIdentifier)' == '.NETFramework'" />
   </ItemGroup>
 
diff --git a/src/Tasks/Microsoft.Build.Tasks.csproj b/src/Tasks/Microsoft.Build.Tasks.csproj
index 3b965e74e6d..2f6c3b36597 100644
--- a/src/Tasks/Microsoft.Build.Tasks.csproj
+++ b/src/Tasks/Microsoft.Build.Tasks.csproj
@@ -987,11 +987,8 @@
 
   <ItemGroup Condition="'$(TargetFrameworkIdentifier)' != '.NETFramework'">
     <PackageReference Include="System.CodeDom" />
-    <PackageReference Include="System.Linq.Parallel" />
-    <PackageReference Include="System.Net.Http" />
     <PackageReference Include="System.Reflection.Metadata" />
     <PackageReference Include="System.Reflection.TypeExtensions" />
-    <PackageReference Include="System.Resources.Writer" />
     <PackageReference Include="System.Security.Permissions" />
     <PackageReference Include="System.Threading.Tasks.Dataflow" />