diff --git a/build/dependencies.props b/build/dependencies.props
index 79acd48cf7..8e8b70efdb 100644
--- a/build/dependencies.props
+++ b/build/dependencies.props
@@ -3,37 +3,37 @@
     <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
   </PropertyGroup>
   <PropertyGroup Label="Package Versions">
-    <InternalAspNetCoreSdkPackageVersion>2.1.0-preview2-15707</InternalAspNetCoreSdkPackageVersion>
-    <InternalAspNetCoreSiteExtensionSdkPackageVersion>2.1.0-preview2-15707</InternalAspNetCoreSiteExtensionSdkPackageVersion>
+    <InternalAspNetCoreSdkPackageVersion>2.1.0-preview2-15721</InternalAspNetCoreSdkPackageVersion>
+    <InternalAspNetCoreSiteExtensionSdkPackageVersion>2.1.0-preview2-15721</InternalAspNetCoreSiteExtensionSdkPackageVersion>
     <MicrosoftApplicationInsightsAspNetCorePackageVersion>2.1.1</MicrosoftApplicationInsightsAspNetCorePackageVersion>
-    <MicrosoftAspNetCoreAspNetCoreModulePackageVersion>2.1.0-preview2-30131</MicrosoftAspNetCoreAspNetCoreModulePackageVersion>
-    <MicrosoftAspNetCoreAzureAppServicesHostingStartupPackageVersion>2.1.0-preview2-30131</MicrosoftAspNetCoreAzureAppServicesHostingStartupPackageVersion>
-    <MicrosoftAspNetCoreAzureKeyVaultHostingStartupPackageVersion>2.1.0-preview2-30131</MicrosoftAspNetCoreAzureKeyVaultHostingStartupPackageVersion>
-    <MicrosoftAspNetCoreDataProtectionAzureKeyVaultPackageVersion>2.1.0-preview2-30131</MicrosoftAspNetCoreDataProtectionAzureKeyVaultPackageVersion>
-    <MicrosoftAspNetCoreHostingAbstractionsPackageVersion>2.1.0-preview2-30131</MicrosoftAspNetCoreHostingAbstractionsPackageVersion>
-    <MicrosoftAspNetCoreHostingPackageVersion>2.1.0-preview2-30131</MicrosoftAspNetCoreHostingPackageVersion>
-    <MicrosoftAspNetCoreMvcPackageVersion>2.1.0-preview2-30131</MicrosoftAspNetCoreMvcPackageVersion>
-    <MicrosoftAspNetCoreRazorRuntimePackageVersion>2.1.0-preview2-30131</MicrosoftAspNetCoreRazorRuntimePackageVersion>
-    <MicrosoftAspNetCoreServerIISIntegrationPackageVersion>2.1.0-preview2-30131</MicrosoftAspNetCoreServerIISIntegrationPackageVersion>
-    <MicrosoftAspNetCoreServerIntegrationTestingPackageVersion>0.5.0-preview2-30131</MicrosoftAspNetCoreServerIntegrationTestingPackageVersion>
-    <MicrosoftAspNetCoreServerKestrelPackageVersion>2.1.0-preview2-30131</MicrosoftAspNetCoreServerKestrelPackageVersion>
-    <MicrosoftAspNetCoreTestHostPackageVersion>2.1.0-preview2-30131</MicrosoftAspNetCoreTestHostPackageVersion>
+    <MicrosoftAspNetCoreAspNetCoreModulePackageVersion>2.1.0-preview2-30187</MicrosoftAspNetCoreAspNetCoreModulePackageVersion>
+    <MicrosoftAspNetCoreAzureAppServicesHostingStartupPackageVersion>2.1.0-preview2-30187</MicrosoftAspNetCoreAzureAppServicesHostingStartupPackageVersion>
+    <MicrosoftAspNetCoreAzureKeyVaultHostingStartupPackageVersion>2.1.0-preview2-30187</MicrosoftAspNetCoreAzureKeyVaultHostingStartupPackageVersion>
+    <MicrosoftAspNetCoreDataProtectionAzureKeyVaultPackageVersion>2.1.0-preview2-30187</MicrosoftAspNetCoreDataProtectionAzureKeyVaultPackageVersion>
+    <MicrosoftAspNetCoreHostingAbstractionsPackageVersion>2.1.0-preview2-30187</MicrosoftAspNetCoreHostingAbstractionsPackageVersion>
+    <MicrosoftAspNetCoreHostingPackageVersion>2.1.0-preview2-30187</MicrosoftAspNetCoreHostingPackageVersion>
+    <MicrosoftAspNetCoreMvcPackageVersion>2.1.0-preview2-30187</MicrosoftAspNetCoreMvcPackageVersion>
+    <MicrosoftAspNetCoreRazorRuntimePackageVersion>2.1.0-preview2-30187</MicrosoftAspNetCoreRazorRuntimePackageVersion>
+    <MicrosoftAspNetCoreServerIISIntegrationPackageVersion>2.1.0-preview2-30187</MicrosoftAspNetCoreServerIISIntegrationPackageVersion>
+    <MicrosoftAspNetCoreServerIntegrationTestingPackageVersion>0.5.0-preview2-30187</MicrosoftAspNetCoreServerIntegrationTestingPackageVersion>
+    <MicrosoftAspNetCoreServerKestrelPackageVersion>2.1.0-preview2-30187</MicrosoftAspNetCoreServerKestrelPackageVersion>
+    <MicrosoftAspNetCoreTestHostPackageVersion>2.1.0-preview2-30187</MicrosoftAspNetCoreTestHostPackageVersion>
     <MicrosoftAzureManagementFluentPackageVersion>1.1.3</MicrosoftAzureManagementFluentPackageVersion>
     <MicrosoftAzureServicesAppAuthenticationPackageVersion>1.1.0-preview</MicrosoftAzureServicesAppAuthenticationPackageVersion>
-    <MicrosoftExtensionsConfigurationAzureKeyVaultPackageVersion>2.1.0-preview2-30131</MicrosoftExtensionsConfigurationAzureKeyVaultPackageVersion>
-    <MicrosoftExtensionsConfigurationCommandLinePackageVersion>2.1.0-preview2-30131</MicrosoftExtensionsConfigurationCommandLinePackageVersion>
-    <MicrosoftExtensionsConfigurationEnvironmentVariablesPackageVersion>2.1.0-preview2-30131</MicrosoftExtensionsConfigurationEnvironmentVariablesPackageVersion>
-    <MicrosoftExtensionsConfigurationJsonPackageVersion>2.1.0-preview2-30131</MicrosoftExtensionsConfigurationJsonPackageVersion>
-    <MicrosoftExtensionsDiagnosticAdapterPackageVersion>2.1.0-preview2-30131</MicrosoftExtensionsDiagnosticAdapterPackageVersion>
-    <MicrosoftExtensionsLoggingAzureAppServicesPackageVersion>2.1.0-preview2-30131</MicrosoftExtensionsLoggingAzureAppServicesPackageVersion>
-    <MicrosoftExtensionsLoggingConfigurationPackageVersion>2.1.0-preview2-30131</MicrosoftExtensionsLoggingConfigurationPackageVersion>
-    <MicrosoftExtensionsLoggingConsolePackageVersion>2.1.0-preview2-30131</MicrosoftExtensionsLoggingConsolePackageVersion>
-    <MicrosoftExtensionsLoggingPackageVersion>2.1.0-preview2-30131</MicrosoftExtensionsLoggingPackageVersion>
-    <MicrosoftExtensionsLoggingTestingPackageVersion>2.1.0-preview2-30131</MicrosoftExtensionsLoggingTestingPackageVersion>
-    <MicrosoftExtensionsProcessSourcesPackageVersion>2.1.0-preview2-30131</MicrosoftExtensionsProcessSourcesPackageVersion>
+    <MicrosoftExtensionsConfigurationAzureKeyVaultPackageVersion>2.1.0-preview2-30187</MicrosoftExtensionsConfigurationAzureKeyVaultPackageVersion>
+    <MicrosoftExtensionsConfigurationCommandLinePackageVersion>2.1.0-preview2-30187</MicrosoftExtensionsConfigurationCommandLinePackageVersion>
+    <MicrosoftExtensionsConfigurationEnvironmentVariablesPackageVersion>2.1.0-preview2-30187</MicrosoftExtensionsConfigurationEnvironmentVariablesPackageVersion>
+    <MicrosoftExtensionsConfigurationJsonPackageVersion>2.1.0-preview2-30187</MicrosoftExtensionsConfigurationJsonPackageVersion>
+    <MicrosoftExtensionsDiagnosticAdapterPackageVersion>2.1.0-preview2-30187</MicrosoftExtensionsDiagnosticAdapterPackageVersion>
+    <MicrosoftExtensionsLoggingAzureAppServicesPackageVersion>2.1.0-preview2-30187</MicrosoftExtensionsLoggingAzureAppServicesPackageVersion>
+    <MicrosoftExtensionsLoggingConfigurationPackageVersion>2.1.0-preview2-30187</MicrosoftExtensionsLoggingConfigurationPackageVersion>
+    <MicrosoftExtensionsLoggingConsolePackageVersion>2.1.0-preview2-30187</MicrosoftExtensionsLoggingConsolePackageVersion>
+    <MicrosoftExtensionsLoggingPackageVersion>2.1.0-preview2-30187</MicrosoftExtensionsLoggingPackageVersion>
+    <MicrosoftExtensionsLoggingTestingPackageVersion>2.1.0-preview2-30187</MicrosoftExtensionsLoggingTestingPackageVersion>
+    <MicrosoftExtensionsProcessSourcesPackageVersion>2.1.0-preview2-30187</MicrosoftExtensionsProcessSourcesPackageVersion>
     <MicrosoftNETCoreApp20PackageVersion>2.0.0</MicrosoftNETCoreApp20PackageVersion>
     <MicrosoftNETCoreApp21PackageVersion>2.1.0-preview2-26130-04</MicrosoftNETCoreApp21PackageVersion>
-    <MicrosoftNETTestSdkPackageVersion>15.3.0</MicrosoftNETTestSdkPackageVersion>
+    <MicrosoftNETTestSdkPackageVersion>15.6.0</MicrosoftNETTestSdkPackageVersion>
     <MicrosoftWebXdtPackageVersion>1.4.0</MicrosoftWebXdtPackageVersion>
     <MoqPackageVersion>4.7.49</MoqPackageVersion>
     <NewtonsoftJsonPackageVersion>10.0.1</NewtonsoftJsonPackageVersion>
diff --git a/korebuild-lock.txt b/korebuild-lock.txt
index 89d0ad3d15..e6c7fddffa 100644
--- a/korebuild-lock.txt
+++ b/korebuild-lock.txt
@@ -1,2 +1,2 @@
-version:2.1.0-preview2-15707
-commithash:e74e53f129ab34332947fea7ac7b7591b027cb22
+version:2.1.0-preview2-15721
+commithash:f9bb4be59e39938ec59a6975257e26099b0d03c1