diff --git a/build/dependencies.props b/build/dependencies.props
index 43516fe164..b3761ac1a8 100644
--- a/build/dependencies.props
+++ b/build/dependencies.props
@@ -3,47 +3,47 @@
     <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
   </PropertyGroup>
   <PropertyGroup Label="Package Versions">
-    <InternalAspNetCoreSdkPackageVersion>2.1.0-preview1-15576</InternalAspNetCoreSdkPackageVersion>
-    <MicrosoftAspNetCoreHttpAbstractionsPackageVersion>2.1.0-preview1-27644</MicrosoftAspNetCoreHttpAbstractionsPackageVersion>
-    <MicrosoftAspNetCoreHttpExtensionsPackageVersion>2.1.0-preview1-27644</MicrosoftAspNetCoreHttpExtensionsPackageVersion>
-    <MicrosoftAspNetCoreHttpFeaturesPackageVersion>2.1.0-preview1-27644</MicrosoftAspNetCoreHttpFeaturesPackageVersion>
-    <MicrosoftAspNetCoreHttpPackageVersion>2.1.0-preview1-27644</MicrosoftAspNetCoreHttpPackageVersion>
-    <MicrosoftAspNetCoreOwinPackageVersion>2.1.0-preview1-27644</MicrosoftAspNetCoreOwinPackageVersion>
-    <MicrosoftAspNetCoreTestingPackageVersion>2.1.0-preview1-27644</MicrosoftAspNetCoreTestingPackageVersion>
-    <MicrosoftExtensionsConfigurationAbstractionsPackageVersion>2.1.0-preview1-27644</MicrosoftExtensionsConfigurationAbstractionsPackageVersion>
-    <MicrosoftExtensionsConfigurationBinderPackageVersion>2.1.0-preview1-27644</MicrosoftExtensionsConfigurationBinderPackageVersion>
-    <MicrosoftExtensionsConfigurationCommandLinePackageVersion>2.1.0-preview1-27644</MicrosoftExtensionsConfigurationCommandLinePackageVersion>
-    <MicrosoftExtensionsConfigurationEnvironmentVariablesPackageVersion>2.1.0-preview1-27644</MicrosoftExtensionsConfigurationEnvironmentVariablesPackageVersion>
-    <MicrosoftExtensionsConfigurationFileExtensionsPackageVersion>2.1.0-preview1-27644</MicrosoftExtensionsConfigurationFileExtensionsPackageVersion>
-    <MicrosoftExtensionsConfigurationJsonPackageVersion>2.1.0-preview1-27644</MicrosoftExtensionsConfigurationJsonPackageVersion>
-    <MicrosoftExtensionsConfigurationPackageVersion>2.1.0-preview1-27644</MicrosoftExtensionsConfigurationPackageVersion>
-    <MicrosoftExtensionsDependencyInjectionAbstractionsPackageVersion>2.1.0-preview1-27644</MicrosoftExtensionsDependencyInjectionAbstractionsPackageVersion>
-    <MicrosoftExtensionsDependencyInjectionPackageVersion>2.1.0-preview1-27644</MicrosoftExtensionsDependencyInjectionPackageVersion>
-    <MicrosoftExtensionsDiagnosticAdapterPackageVersion>2.1.0-preview1-27644</MicrosoftExtensionsDiagnosticAdapterPackageVersion>
-    <MicrosoftExtensionsFileProvidersAbstractionsPackageVersion>2.1.0-preview1-27644</MicrosoftExtensionsFileProvidersAbstractionsPackageVersion>
-    <MicrosoftExtensionsFileProvidersEmbeddedPackageVersion>2.1.0-preview1-27644</MicrosoftExtensionsFileProvidersEmbeddedPackageVersion>
-    <MicrosoftExtensionsFileProvidersPhysicalPackageVersion>2.1.0-preview1-27644</MicrosoftExtensionsFileProvidersPhysicalPackageVersion>
-    <MicrosoftExtensionsLoggingAbstractionsPackageVersion>2.1.0-preview1-27644</MicrosoftExtensionsLoggingAbstractionsPackageVersion>
-    <MicrosoftExtensionsLoggingConsolePackageVersion>2.1.0-preview1-27644</MicrosoftExtensionsLoggingConsolePackageVersion>
-    <MicrosoftExtensionsLoggingPackageVersion>2.1.0-preview1-27644</MicrosoftExtensionsLoggingPackageVersion>
-    <MicrosoftExtensionsLoggingTestingPackageVersion>2.1.0-preview1-27644</MicrosoftExtensionsLoggingTestingPackageVersion>
-    <MicrosoftExtensionsOptionsPackageVersion>2.1.0-preview1-27644</MicrosoftExtensionsOptionsPackageVersion>
-    <MicrosoftExtensionsProcessSourcesPackageVersion>2.1.0-preview1-27644</MicrosoftExtensionsProcessSourcesPackageVersion>
-    <MicrosoftExtensionsRazorViewsSourcesPackageVersion>2.1.0-preview1-27644</MicrosoftExtensionsRazorViewsSourcesPackageVersion>
-    <MicrosoftExtensionsStackTraceSourcesPackageVersion>2.1.0-preview1-27644</MicrosoftExtensionsStackTraceSourcesPackageVersion>
-    <MicrosoftExtensionsTypeNameHelperSourcesPackageVersion>2.1.0-preview1-27644</MicrosoftExtensionsTypeNameHelperSourcesPackageVersion>
+    <InternalAspNetCoreSdkPackageVersion>2.1.0-preview1-15618</InternalAspNetCoreSdkPackageVersion>
+    <MicrosoftAspNetCoreHttpAbstractionsPackageVersion>2.1.0-preview1-27773</MicrosoftAspNetCoreHttpAbstractionsPackageVersion>
+    <MicrosoftAspNetCoreHttpExtensionsPackageVersion>2.1.0-preview1-27773</MicrosoftAspNetCoreHttpExtensionsPackageVersion>
+    <MicrosoftAspNetCoreHttpFeaturesPackageVersion>2.1.0-preview1-27773</MicrosoftAspNetCoreHttpFeaturesPackageVersion>
+    <MicrosoftAspNetCoreHttpPackageVersion>2.1.0-preview1-27773</MicrosoftAspNetCoreHttpPackageVersion>
+    <MicrosoftAspNetCoreOwinPackageVersion>2.1.0-preview1-27773</MicrosoftAspNetCoreOwinPackageVersion>
+    <MicrosoftAspNetCoreTestingPackageVersion>2.1.0-preview1-27773</MicrosoftAspNetCoreTestingPackageVersion>
+    <MicrosoftExtensionsConfigurationAbstractionsPackageVersion>2.1.0-preview1-27773</MicrosoftExtensionsConfigurationAbstractionsPackageVersion>
+    <MicrosoftExtensionsConfigurationBinderPackageVersion>2.1.0-preview1-27773</MicrosoftExtensionsConfigurationBinderPackageVersion>
+    <MicrosoftExtensionsConfigurationCommandLinePackageVersion>2.1.0-preview1-27773</MicrosoftExtensionsConfigurationCommandLinePackageVersion>
+    <MicrosoftExtensionsConfigurationEnvironmentVariablesPackageVersion>2.1.0-preview1-27773</MicrosoftExtensionsConfigurationEnvironmentVariablesPackageVersion>
+    <MicrosoftExtensionsConfigurationFileExtensionsPackageVersion>2.1.0-preview1-27773</MicrosoftExtensionsConfigurationFileExtensionsPackageVersion>
+    <MicrosoftExtensionsConfigurationJsonPackageVersion>2.1.0-preview1-27773</MicrosoftExtensionsConfigurationJsonPackageVersion>
+    <MicrosoftExtensionsConfigurationPackageVersion>2.1.0-preview1-27773</MicrosoftExtensionsConfigurationPackageVersion>
+    <MicrosoftExtensionsDependencyInjectionAbstractionsPackageVersion>2.1.0-preview1-27773</MicrosoftExtensionsDependencyInjectionAbstractionsPackageVersion>
+    <MicrosoftExtensionsDependencyInjectionPackageVersion>2.1.0-preview1-27773</MicrosoftExtensionsDependencyInjectionPackageVersion>
+    <MicrosoftExtensionsDiagnosticAdapterPackageVersion>2.1.0-preview1-27773</MicrosoftExtensionsDiagnosticAdapterPackageVersion>
+    <MicrosoftExtensionsFileProvidersAbstractionsPackageVersion>2.1.0-preview1-27773</MicrosoftExtensionsFileProvidersAbstractionsPackageVersion>
+    <MicrosoftExtensionsFileProvidersEmbeddedPackageVersion>2.1.0-preview1-27773</MicrosoftExtensionsFileProvidersEmbeddedPackageVersion>
+    <MicrosoftExtensionsFileProvidersPhysicalPackageVersion>2.1.0-preview1-27773</MicrosoftExtensionsFileProvidersPhysicalPackageVersion>
+    <MicrosoftExtensionsLoggingAbstractionsPackageVersion>2.1.0-preview1-27773</MicrosoftExtensionsLoggingAbstractionsPackageVersion>
+    <MicrosoftExtensionsLoggingConsolePackageVersion>2.1.0-preview1-27773</MicrosoftExtensionsLoggingConsolePackageVersion>
+    <MicrosoftExtensionsLoggingPackageVersion>2.1.0-preview1-27773</MicrosoftExtensionsLoggingPackageVersion>
+    <MicrosoftExtensionsLoggingTestingPackageVersion>2.1.0-preview1-27773</MicrosoftExtensionsLoggingTestingPackageVersion>
+    <MicrosoftExtensionsOptionsPackageVersion>2.1.0-preview1-27773</MicrosoftExtensionsOptionsPackageVersion>
+    <MicrosoftExtensionsProcessSourcesPackageVersion>2.1.0-preview1-27773</MicrosoftExtensionsProcessSourcesPackageVersion>
+    <MicrosoftExtensionsRazorViewsSourcesPackageVersion>2.1.0-preview1-27773</MicrosoftExtensionsRazorViewsSourcesPackageVersion>
+    <MicrosoftExtensionsStackTraceSourcesPackageVersion>2.1.0-preview1-27773</MicrosoftExtensionsStackTraceSourcesPackageVersion>
+    <MicrosoftExtensionsTypeNameHelperSourcesPackageVersion>2.1.0-preview1-27773</MicrosoftExtensionsTypeNameHelperSourcesPackageVersion>
     <MicrosoftNETCoreApp20PackageVersion>2.0.0</MicrosoftNETCoreApp20PackageVersion>
-    <MicrosoftNETCoreApp21PackageVersion>2.1.0-preview1-25907-02</MicrosoftNETCoreApp21PackageVersion>
+    <MicrosoftNETCoreApp21PackageVersion>2.1.0-preview1-25915-01</MicrosoftNETCoreApp21PackageVersion>
     <MicrosoftNETCoreWindowsApiSetsPackageVersion>1.0.1</MicrosoftNETCoreWindowsApiSetsPackageVersion>
     <MicrosoftNETTestSdkPackageVersion>15.3.0</MicrosoftNETTestSdkPackageVersion>
     <MoqPackageVersion>4.7.49</MoqPackageVersion>
     <SerilogExtensionsLoggingPackageVersion>1.4.0</SerilogExtensionsLoggingPackageVersion>
     <SerilogSinksFilePackageVersion>3.2.0</SerilogSinksFilePackageVersion>
-    <SystemDiagnosticsDiagnosticSourcePackageVersion>4.4.1</SystemDiagnosticsDiagnosticSourcePackageVersion>
-    <SystemReflectionMetadataPackageVersion>1.5.0</SystemReflectionMetadataPackageVersion>
-    <SystemServiceProcessServiceControllerPackageVersion>4.5.0-preview1-25922-03</SystemServiceProcessServiceControllerPackageVersion>
-    <XunitPackageVersion>2.3.0</XunitPackageVersion>
-    <XunitRunnerVisualStudioPackageVersion>2.3.0</XunitRunnerVisualStudioPackageVersion>
+    <SystemDiagnosticsDiagnosticSourcePackageVersion>4.5.0-preview1-25914-04</SystemDiagnosticsDiagnosticSourcePackageVersion>
+    <SystemReflectionMetadataPackageVersion>1.6.0-preview1-25914-04</SystemReflectionMetadataPackageVersion>
+    <SystemServiceProcessServiceControllerPackageVersion>4.5.0-preview1-25914-04</SystemServiceProcessServiceControllerPackageVersion>
+    <XunitPackageVersion>2.3.1</XunitPackageVersion>
+    <XunitRunnerVisualStudioPackageVersion>2.3.1</XunitRunnerVisualStudioPackageVersion>
   </PropertyGroup>
   <Import Project="$(DotNetPackageVersionPropsPath)" Condition=" '$(DotNetPackageVersionPropsPath)' != '' " />
 </Project>
diff --git a/korebuild-lock.txt b/korebuild-lock.txt
index 1a99066b7c..e7cce93009 100644
--- a/korebuild-lock.txt
+++ b/korebuild-lock.txt
@@ -1,2 +1,2 @@
-version:2.1.0-preview1-15576
-commithash:2f3856d2ba4f659fcb9253215b83946a06794a27
+version:2.1.0-preview1-15618
+commithash:00ce1383114015fe89b221146036e59e6bc11219