diff --git a/Directory.Build.targets b/Directory.Build.targets
index 894b1d0cf8..53b3f6e1da 100644
--- a/Directory.Build.targets
+++ b/Directory.Build.targets
@@ -2,5 +2,6 @@
   <PropertyGroup>
     <RuntimeFrameworkVersion Condition=" '$(TargetFramework)' == 'netcoreapp2.0' ">$(MicrosoftNETCoreApp20PackageVersion)</RuntimeFrameworkVersion>
     <RuntimeFrameworkVersion Condition=" '$(TargetFramework)' == 'netcoreapp2.1' ">$(MicrosoftNETCoreApp21PackageVersion)</RuntimeFrameworkVersion>
+    <NETStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard2.0' ">$(NETStandardLibrary20PackageVersion)</NETStandardImplicitPackageVersion>
   </PropertyGroup>
 </Project>
diff --git a/build/dependencies.props b/build/dependencies.props
index b2f79cb4fc..de2eac728e 100644
--- a/build/dependencies.props
+++ b/build/dependencies.props
@@ -1,25 +1,25 @@
-<Project>
+<Project>
   <PropertyGroup>
     <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
   </PropertyGroup>
   <PropertyGroup Label="Package Versions">
     <BenchmarkDotNetPackageVersion>0.10.13</BenchmarkDotNetPackageVersion>
-    <InternalAspNetCoreSdkPackageVersion>2.2.0-preview1-17034</InternalAspNetCoreSdkPackageVersion>
-    <MicrosoftAspNetCoreBenchmarkRunnerSourcesPackageVersion>2.1.0-preview3-32251</MicrosoftAspNetCoreBenchmarkRunnerSourcesPackageVersion>
-    <MicrosoftAspNetCoreHtmlAbstractionsPackageVersion>2.1.0-preview3-32251</MicrosoftAspNetCoreHtmlAbstractionsPackageVersion>
-    <MicrosoftAspNetCoreTestingPackageVersion>2.1.0-preview3-32251</MicrosoftAspNetCoreTestingPackageVersion>
+    <InternalAspNetCoreSdkPackageVersion>2.1.0-rc1-15774</InternalAspNetCoreSdkPackageVersion>
+    <MicrosoftAspNetCoreBenchmarkRunnerSourcesPackageVersion>2.1.0-rc1-30613</MicrosoftAspNetCoreBenchmarkRunnerSourcesPackageVersion>
+    <MicrosoftAspNetCoreHtmlAbstractionsPackageVersion>2.1.0-rc1-30613</MicrosoftAspNetCoreHtmlAbstractionsPackageVersion>
+    <MicrosoftAspNetCoreTestingPackageVersion>2.1.0-rc1-30613</MicrosoftAspNetCoreTestingPackageVersion>
     <MicrosoftBuildFrameworkPackageVersion>15.6.82</MicrosoftBuildFrameworkPackageVersion>
     <MicrosoftBuildPackageVersion>15.6.82</MicrosoftBuildPackageVersion>
     <MicrosoftBuildUtilitiesCorePackageVersion>15.6.82</MicrosoftBuildUtilitiesCorePackageVersion>
     <MicrosoftCodeAnalysisCommonPackageVersion>2.8.0-beta3</MicrosoftCodeAnalysisCommonPackageVersion>
     <MicrosoftCodeAnalysisCSharpPackageVersion>2.8.0-beta3</MicrosoftCodeAnalysisCSharpPackageVersion>
-    <MicrosoftExtensionsCommandLineUtilsSourcesPackageVersion>2.1.0-preview3-32251</MicrosoftExtensionsCommandLineUtilsSourcesPackageVersion>
-    <MicrosoftExtensionsCopyOnWriteDictionarySourcesPackageVersion>2.1.0-preview3-32251</MicrosoftExtensionsCopyOnWriteDictionarySourcesPackageVersion>
-    <MicrosoftExtensionsDependencyModelPackageVersion>2.1.0-preview3-26413-05</MicrosoftExtensionsDependencyModelPackageVersion>
-    <MicrosoftExtensionsHashCodeCombinerSourcesPackageVersion>2.1.0-preview3-32251</MicrosoftExtensionsHashCodeCombinerSourcesPackageVersion>
-    <MicrosoftExtensionsWebEncodersPackageVersion>2.1.0-preview3-32251</MicrosoftExtensionsWebEncodersPackageVersion>
+    <MicrosoftExtensionsCommandLineUtilsSourcesPackageVersion>2.1.0-rc1-30613</MicrosoftExtensionsCommandLineUtilsSourcesPackageVersion>
+    <MicrosoftExtensionsCopyOnWriteDictionarySourcesPackageVersion>2.1.0-rc1-30613</MicrosoftExtensionsCopyOnWriteDictionarySourcesPackageVersion>
+    <MicrosoftExtensionsDependencyModelPackageVersion>2.1.0-rc1-26419-02</MicrosoftExtensionsDependencyModelPackageVersion>
+    <MicrosoftExtensionsHashCodeCombinerSourcesPackageVersion>2.1.0-rc1-30613</MicrosoftExtensionsHashCodeCombinerSourcesPackageVersion>
+    <MicrosoftExtensionsWebEncodersPackageVersion>2.1.0-rc1-30613</MicrosoftExtensionsWebEncodersPackageVersion>
     <MicrosoftNETCoreApp20PackageVersion>2.0.0</MicrosoftNETCoreApp20PackageVersion>
-    <MicrosoftNETCoreApp21PackageVersion>2.1.0-preview3-26413-05</MicrosoftNETCoreApp21PackageVersion>
+    <MicrosoftNETCoreApp21PackageVersion>2.1.0-rc1-26419-02</MicrosoftNETCoreApp21PackageVersion>
     <MicrosoftNETTestSdkPackageVersion>15.6.1</MicrosoftNETTestSdkPackageVersion>
     <MicrosoftVisualStudioComponentModelHostPackageVersion>15.0.26606</MicrosoftVisualStudioComponentModelHostPackageVersion>
     <MicrosoftVisualStudioEditorPackageVersion>15.6.161-preview</MicrosoftVisualStudioEditorPackageVersion>
@@ -42,8 +42,8 @@
     <NETStandardLibrary20PackageVersion>2.0.1</NETStandardLibrary20PackageVersion>
     <NewtonsoftJsonPackageVersion>11.0.2</NewtonsoftJsonPackageVersion>
     <StreamJsonRpcPackageVersion>1.1.92</StreamJsonRpcPackageVersion>
-    <SystemDiagnosticsDiagnosticSourcePackageVersion>4.5.0-preview3-26413-02</SystemDiagnosticsDiagnosticSourcePackageVersion>
-    <SystemValueTuplePackageVersion>4.5.0-preview3-26413-02</SystemValueTuplePackageVersion>
+    <SystemDiagnosticsDiagnosticSourcePackageVersion>4.5.0-rc1-26419-03</SystemDiagnosticsDiagnosticSourcePackageVersion>
+    <SystemValueTuplePackageVersion>4.5.0-rc1-26419-03</SystemValueTuplePackageVersion>
     <VisualStudio_NewtonsoftJsonPackageVersion>9.0.1</VisualStudio_NewtonsoftJsonPackageVersion>
     <VSIX_MicrosoftCodeAnalysisCommonPackageVersion>2.8.0-beta3</VSIX_MicrosoftCodeAnalysisCommonPackageVersion>
     <VSIX_MicrosoftCodeAnalysisCSharpFeaturesPackageVersion>2.8.0-beta3</VSIX_MicrosoftCodeAnalysisCSharpFeaturesPackageVersion>