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 f790c15193..ae81767de2 100644
--- a/build/dependencies.props
+++ b/build/dependencies.props
@@ -3,25 +3,26 @@
     <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
   </PropertyGroup>
   <PropertyGroup Label="Package Versions">
-    <InternalAspNetCoreSdkPackageVersion>2.1.0-preview3-17018</InternalAspNetCoreSdkPackageVersion>
-    <MicrosoftAspNetCoreAspNetCoreModulePackageVersion>2.1.0-preview3-32233</MicrosoftAspNetCoreAspNetCoreModulePackageVersion>
-    <MicrosoftAspNetCoreAspNetCoreModuleV1PackageVersion>2.1.0-preview3-32233</MicrosoftAspNetCoreAspNetCoreModuleV1PackageVersion>
-    <MicrosoftAspNetCoreResponseCompressionPackageVersion>2.1.0-preview3-32233</MicrosoftAspNetCoreResponseCompressionPackageVersion>
-    <MicrosoftAspNetCoreServerHttpSysPackageVersion>2.1.0-preview3-32233</MicrosoftAspNetCoreServerHttpSysPackageVersion>
-    <MicrosoftAspNetCoreServerIISIntegrationPackageVersion>2.1.0-preview3-32233</MicrosoftAspNetCoreServerIISIntegrationPackageVersion>
-    <MicrosoftAspNetCoreServerIISPackageVersion>2.1.0-preview3-32233</MicrosoftAspNetCoreServerIISPackageVersion>
-    <MicrosoftAspNetCoreServerIntegrationTestingPackageVersion>0.5.0-preview2-32233</MicrosoftAspNetCoreServerIntegrationTestingPackageVersion>
-    <MicrosoftAspNetCoreServerKestrelPackageVersion>2.1.0-preview3-32233</MicrosoftAspNetCoreServerKestrelPackageVersion>
-    <MicrosoftAspNetCoreWebUtilitiesPackageVersion>2.1.0-preview3-32233</MicrosoftAspNetCoreWebUtilitiesPackageVersion>
-    <MicrosoftExtensionsConfigurationCommandLinePackageVersion>2.1.0-preview3-32233</MicrosoftExtensionsConfigurationCommandLinePackageVersion>
-    <MicrosoftExtensionsConfigurationJsonPackageVersion>2.1.0-preview3-32233</MicrosoftExtensionsConfigurationJsonPackageVersion>
-    <MicrosoftExtensionsLoggingConsolePackageVersion>2.1.0-preview3-32233</MicrosoftExtensionsLoggingConsolePackageVersion>
-    <MicrosoftExtensionsLoggingPackageVersion>2.1.0-preview3-32233</MicrosoftExtensionsLoggingPackageVersion>
-    <MicrosoftExtensionsLoggingTestingPackageVersion>2.1.0-preview3-32233</MicrosoftExtensionsLoggingTestingPackageVersion>
+    <InternalAspNetCoreSdkPackageVersion>2.1.0-rc1-15774</InternalAspNetCoreSdkPackageVersion>
+    <MicrosoftAspNetCoreAspNetCoreModulePackageVersion>2.1.0-rc1-30613</MicrosoftAspNetCoreAspNetCoreModulePackageVersion>
+    <MicrosoftAspNetCoreAspNetCoreModuleV1PackageVersion>2.1.0-rc1-30613</MicrosoftAspNetCoreAspNetCoreModuleV1PackageVersion>
+    <MicrosoftAspNetCoreResponseCompressionPackageVersion>2.1.0-rc1-30613</MicrosoftAspNetCoreResponseCompressionPackageVersion>
+    <MicrosoftAspNetCoreServerHttpSysPackageVersion>2.1.0-rc1-30613</MicrosoftAspNetCoreServerHttpSysPackageVersion>
+    <MicrosoftAspNetCoreServerIISIntegrationPackageVersion>2.1.0-rc1-30613</MicrosoftAspNetCoreServerIISIntegrationPackageVersion>
+    <MicrosoftAspNetCoreServerIISPackageVersion>2.1.0-rc1-30613</MicrosoftAspNetCoreServerIISPackageVersion>
+    <MicrosoftAspNetCoreServerIntegrationTestingPackageVersion>0.5.0-preview2-30613</MicrosoftAspNetCoreServerIntegrationTestingPackageVersion>
+    <MicrosoftAspNetCoreServerKestrelPackageVersion>2.1.0-rc1-30613</MicrosoftAspNetCoreServerKestrelPackageVersion>
+    <MicrosoftAspNetCoreWebUtilitiesPackageVersion>2.1.0-rc1-30613</MicrosoftAspNetCoreWebUtilitiesPackageVersion>
+    <MicrosoftExtensionsConfigurationCommandLinePackageVersion>2.1.0-rc1-30613</MicrosoftExtensionsConfigurationCommandLinePackageVersion>
+    <MicrosoftExtensionsConfigurationJsonPackageVersion>2.1.0-rc1-30613</MicrosoftExtensionsConfigurationJsonPackageVersion>
+    <MicrosoftExtensionsLoggingConsolePackageVersion>2.1.0-rc1-30613</MicrosoftExtensionsLoggingConsolePackageVersion>
+    <MicrosoftExtensionsLoggingPackageVersion>2.1.0-rc1-30613</MicrosoftExtensionsLoggingPackageVersion>
+    <MicrosoftExtensionsLoggingTestingPackageVersion>2.1.0-rc1-30613</MicrosoftExtensionsLoggingTestingPackageVersion>
     <MicrosoftNETCoreApp20PackageVersion>2.0.0</MicrosoftNETCoreApp20PackageVersion>
-    <MicrosoftNETCoreApp21PackageVersion>2.1.0-preview3-26413-05</MicrosoftNETCoreApp21PackageVersion>
-    <MicrosoftNetHttpHeadersPackageVersion>2.1.0-preview3-32233</MicrosoftNetHttpHeadersPackageVersion>
+    <MicrosoftNETCoreApp21PackageVersion>2.1.0-rc1-26419-02</MicrosoftNETCoreApp21PackageVersion>
+    <MicrosoftNetHttpHeadersPackageVersion>2.1.0-rc1-30613</MicrosoftNetHttpHeadersPackageVersion>
     <MicrosoftNETTestSdkPackageVersion>15.6.1</MicrosoftNETTestSdkPackageVersion>
+    <NETStandardLibrary20PackageVersion>2.0.1</NETStandardLibrary20PackageVersion>
     <SerilogExtensionsLoggingPackageVersion>1.4.0</SerilogExtensionsLoggingPackageVersion>
     <SerilogSinksFilePackageVersion>3.2.0</SerilogSinksFilePackageVersion>
     <XunitPackageVersion>2.3.1</XunitPackageVersion>