diff --git a/build/dependencies.props b/build/dependencies.props
index d0cb88aa82..d0dfac301f 100644
--- a/build/dependencies.props
+++ b/build/dependencies.props
@@ -3,38 +3,38 @@
     <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
   </PropertyGroup>
   <PropertyGroup Label="Package Versions">
-    <InternalAspNetCoreSdkPackageVersion>2.1.0-preview2-15728</InternalAspNetCoreSdkPackageVersion>
-    <MicrosoftAspNetCoreAuthenticationAbstractionsPackageVersion>2.1.0-preview2-30272</MicrosoftAspNetCoreAuthenticationAbstractionsPackageVersion>
-    <MicrosoftAspNetCoreAuthenticationCorePackageVersion>2.1.0-preview2-30272</MicrosoftAspNetCoreAuthenticationCorePackageVersion>
-    <MicrosoftAspNetCoreDataProtectionExtensionsPackageVersion>2.1.0-preview2-30272</MicrosoftAspNetCoreDataProtectionExtensionsPackageVersion>
-    <MicrosoftAspNetCoreDataProtectionPackageVersion>2.1.0-preview2-30272</MicrosoftAspNetCoreDataProtectionPackageVersion>
-    <MicrosoftAspNetCoreDiagnosticsPackageVersion>2.1.0-preview2-30272</MicrosoftAspNetCoreDiagnosticsPackageVersion>
-    <MicrosoftAspNetCoreHostingPackageVersion>2.1.0-preview2-30272</MicrosoftAspNetCoreHostingPackageVersion>
-    <MicrosoftAspNetCoreHttpExtensionsPackageVersion>2.1.0-preview2-30272</MicrosoftAspNetCoreHttpExtensionsPackageVersion>
-    <MicrosoftAspNetCoreHttpPackageVersion>2.1.0-preview2-30272</MicrosoftAspNetCoreHttpPackageVersion>
-    <MicrosoftAspNetCoreServerIISIntegrationPackageVersion>2.1.0-preview2-30272</MicrosoftAspNetCoreServerIISIntegrationPackageVersion>
-    <MicrosoftAspNetCoreServerKestrelHttpsPackageVersion>2.1.0-preview2-30272</MicrosoftAspNetCoreServerKestrelHttpsPackageVersion>
-    <MicrosoftAspNetCoreServerKestrelPackageVersion>2.1.0-preview2-30272</MicrosoftAspNetCoreServerKestrelPackageVersion>
-    <MicrosoftAspNetCoreStaticFilesPackageVersion>2.1.0-preview2-30272</MicrosoftAspNetCoreStaticFilesPackageVersion>
-    <MicrosoftAspNetCoreTestHostPackageVersion>2.1.0-preview2-30272</MicrosoftAspNetCoreTestHostPackageVersion>
-    <MicrosoftAspNetCoreTestingPackageVersion>2.1.0-preview2-30272</MicrosoftAspNetCoreTestingPackageVersion>
-    <MicrosoftExtensionsCachingMemoryPackageVersion>2.1.0-preview2-30272</MicrosoftExtensionsCachingMemoryPackageVersion>
-    <MicrosoftExtensionsConfigurationEnvironmentVariablesPackageVersion>2.1.0-preview2-30272</MicrosoftExtensionsConfigurationEnvironmentVariablesPackageVersion>
-    <MicrosoftExtensionsConfigurationUserSecretsPackageVersion>2.1.0-preview2-30272</MicrosoftExtensionsConfigurationUserSecretsPackageVersion>
-    <MicrosoftExtensionsDependencyInjectionPackageVersion>2.1.0-preview2-30272</MicrosoftExtensionsDependencyInjectionPackageVersion>
-    <MicrosoftExtensionsFileProvidersEmbeddedPackageVersion>2.1.0-preview2-30272</MicrosoftExtensionsFileProvidersEmbeddedPackageVersion>
-    <MicrosoftExtensionsLoggingAbstractionsPackageVersion>2.1.0-preview2-30272</MicrosoftExtensionsLoggingAbstractionsPackageVersion>
-    <MicrosoftExtensionsLoggingConsolePackageVersion>2.1.0-preview2-30272</MicrosoftExtensionsLoggingConsolePackageVersion>
-    <MicrosoftExtensionsLoggingDebugPackageVersion>2.1.0-preview2-30272</MicrosoftExtensionsLoggingDebugPackageVersion>
-    <MicrosoftExtensionsLoggingPackageVersion>2.1.0-preview2-30272</MicrosoftExtensionsLoggingPackageVersion>
-    <MicrosoftExtensionsOptionsPackageVersion>2.1.0-preview2-30272</MicrosoftExtensionsOptionsPackageVersion>
-    <MicrosoftExtensionsSecurityHelperSourcesPackageVersion>2.1.0-preview2-30272</MicrosoftExtensionsSecurityHelperSourcesPackageVersion>
-    <MicrosoftExtensionsWebEncodersPackageVersion>2.1.0-preview2-30272</MicrosoftExtensionsWebEncodersPackageVersion>
+    <InternalAspNetCoreSdkPackageVersion>2.1.0-preview2-15742</InternalAspNetCoreSdkPackageVersion>
+    <MicrosoftAspNetCoreAuthenticationAbstractionsPackageVersion>2.1.0-preview2-30355</MicrosoftAspNetCoreAuthenticationAbstractionsPackageVersion>
+    <MicrosoftAspNetCoreAuthenticationCorePackageVersion>2.1.0-preview2-30355</MicrosoftAspNetCoreAuthenticationCorePackageVersion>
+    <MicrosoftAspNetCoreDataProtectionExtensionsPackageVersion>2.1.0-preview2-30355</MicrosoftAspNetCoreDataProtectionExtensionsPackageVersion>
+    <MicrosoftAspNetCoreDataProtectionPackageVersion>2.1.0-preview2-30355</MicrosoftAspNetCoreDataProtectionPackageVersion>
+    <MicrosoftAspNetCoreDiagnosticsPackageVersion>2.1.0-preview2-30355</MicrosoftAspNetCoreDiagnosticsPackageVersion>
+    <MicrosoftAspNetCoreHostingPackageVersion>2.1.0-preview2-30355</MicrosoftAspNetCoreHostingPackageVersion>
+    <MicrosoftAspNetCoreHttpExtensionsPackageVersion>2.1.0-preview2-30355</MicrosoftAspNetCoreHttpExtensionsPackageVersion>
+    <MicrosoftAspNetCoreHttpPackageVersion>2.1.0-preview2-30355</MicrosoftAspNetCoreHttpPackageVersion>
+    <MicrosoftAspNetCoreServerIISIntegrationPackageVersion>2.1.0-preview2-30355</MicrosoftAspNetCoreServerIISIntegrationPackageVersion>
+    <MicrosoftAspNetCoreServerKestrelHttpsPackageVersion>2.1.0-preview2-30355</MicrosoftAspNetCoreServerKestrelHttpsPackageVersion>
+    <MicrosoftAspNetCoreServerKestrelPackageVersion>2.1.0-preview2-30355</MicrosoftAspNetCoreServerKestrelPackageVersion>
+    <MicrosoftAspNetCoreStaticFilesPackageVersion>2.1.0-preview2-30355</MicrosoftAspNetCoreStaticFilesPackageVersion>
+    <MicrosoftAspNetCoreTestHostPackageVersion>2.1.0-preview2-30355</MicrosoftAspNetCoreTestHostPackageVersion>
+    <MicrosoftAspNetCoreTestingPackageVersion>2.1.0-preview2-30355</MicrosoftAspNetCoreTestingPackageVersion>
+    <MicrosoftExtensionsCachingMemoryPackageVersion>2.1.0-preview2-30355</MicrosoftExtensionsCachingMemoryPackageVersion>
+    <MicrosoftExtensionsConfigurationEnvironmentVariablesPackageVersion>2.1.0-preview2-30355</MicrosoftExtensionsConfigurationEnvironmentVariablesPackageVersion>
+    <MicrosoftExtensionsConfigurationUserSecretsPackageVersion>2.1.0-preview2-30355</MicrosoftExtensionsConfigurationUserSecretsPackageVersion>
+    <MicrosoftExtensionsDependencyInjectionPackageVersion>2.1.0-preview2-30355</MicrosoftExtensionsDependencyInjectionPackageVersion>
+    <MicrosoftExtensionsFileProvidersEmbeddedPackageVersion>2.1.0-preview2-30355</MicrosoftExtensionsFileProvidersEmbeddedPackageVersion>
+    <MicrosoftExtensionsLoggingAbstractionsPackageVersion>2.1.0-preview2-30355</MicrosoftExtensionsLoggingAbstractionsPackageVersion>
+    <MicrosoftExtensionsLoggingConsolePackageVersion>2.1.0-preview2-30355</MicrosoftExtensionsLoggingConsolePackageVersion>
+    <MicrosoftExtensionsLoggingDebugPackageVersion>2.1.0-preview2-30355</MicrosoftExtensionsLoggingDebugPackageVersion>
+    <MicrosoftExtensionsLoggingPackageVersion>2.1.0-preview2-30355</MicrosoftExtensionsLoggingPackageVersion>
+    <MicrosoftExtensionsOptionsPackageVersion>2.1.0-preview2-30355</MicrosoftExtensionsOptionsPackageVersion>
+    <MicrosoftExtensionsSecurityHelperSourcesPackageVersion>2.1.0-preview2-30355</MicrosoftExtensionsSecurityHelperSourcesPackageVersion>
+    <MicrosoftExtensionsWebEncodersPackageVersion>2.1.0-preview2-30355</MicrosoftExtensionsWebEncodersPackageVersion>
     <MicrosoftIdentityModelClientsActiveDirectoryPackageVersion>3.14.2</MicrosoftIdentityModelClientsActiveDirectoryPackageVersion>
     <MicrosoftIdentityModelProtocolsOpenIdConnectPackageVersion>5.2.0</MicrosoftIdentityModelProtocolsOpenIdConnectPackageVersion>
     <MicrosoftIdentityModelProtocolsWsFederationPackageVersion>5.2.0</MicrosoftIdentityModelProtocolsWsFederationPackageVersion>
     <MicrosoftNETCoreApp20PackageVersion>2.0.0</MicrosoftNETCoreApp20PackageVersion>
-    <MicrosoftNETCoreApp21PackageVersion>2.1.0-preview2-26225-03</MicrosoftNETCoreApp21PackageVersion>
+    <MicrosoftNETCoreApp21PackageVersion>2.1.0-preview2-26314-02</MicrosoftNETCoreApp21PackageVersion>
     <MicrosoftNETTestSdkPackageVersion>15.6.0</MicrosoftNETTestSdkPackageVersion>
     <MicrosoftOwinSecurityCookiesPackageVersion>3.0.1</MicrosoftOwinSecurityCookiesPackageVersion>
     <MicrosoftOwinSecurityPackageVersion>3.0.1</MicrosoftOwinSecurityPackageVersion>
diff --git a/build/repo.props b/build/repo.props
index 541470c9f4..2ab5a2ae35 100644
--- a/build/repo.props
+++ b/build/repo.props
@@ -1,4 +1,4 @@
-<Project>
+<Project>
   <Import Project="dependencies.props" />
 
   <ItemGroup>
@@ -7,7 +7,7 @@
   <PropertyGroup>
     <!-- These properties are use by the automation that updates dependencies.props -->
     <LineupPackageId>Internal.AspNetCore.Universe.Lineup</LineupPackageId>
-    <LineupPackageRestoreSource>https://dotnet.myget.org/F/aspnetcore-dev/api/v3/index.json</LineupPackageRestoreSource>
+    <LineupPackageRestoreSource>https://dotnet.myget.org/F/aspnetcore-release/api/v3/index.json</LineupPackageRestoreSource>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/build/sources.props b/build/sources.props
index 9215df9751..36045f12b5 100644
--- a/build/sources.props
+++ b/build/sources.props
@@ -6,7 +6,7 @@
     <RestoreSources Condition="'$(DotNetBuildOffline)' != 'true' AND '$(AspNetUniverseBuildOffline)' != 'true' ">
       $(RestoreSources);
       https://dotnet.myget.org/F/dotnet-core/api/v3/index.json;
-      https://dotnet.myget.org/F/aspnetcore-dev/api/v3/index.json;
+      https://dotnet.myget.org/F/aspnetcore-release/api/v3/index.json;
       https://dotnet.myget.org/F/aspnetcore-tools/api/v3/index.json;
     </RestoreSources>
     <RestoreSources Condition="'$(DotNetBuildOffline)' != 'true'">
diff --git a/korebuild-lock.txt b/korebuild-lock.txt
index 138d848db1..e40ef6651b 100644
--- a/korebuild-lock.txt
+++ b/korebuild-lock.txt
@@ -1,2 +1,2 @@
-version:2.1.0-preview2-15728
-commithash:393377068ddcf51dfee0536536d455f57a828b06
+version:2.1.0-preview2-15742
+commithash:21fbb0f2c3fe4a9216e2d59632b98cfd7d685962