diff --git a/build/dependencies.props b/build/dependencies.props
index 0a3ff46de7..7537f33f0a 100644
--- a/build/dependencies.props
+++ b/build/dependencies.props
@@ -3,17 +3,17 @@
     <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
   </PropertyGroup>
   <PropertyGroup Label="Package Versions">
-    <InternalAspNetCoreSdkPackageVersion>2.1.0-preview2-15742</InternalAspNetCoreSdkPackageVersion>
-    <MicrosoftAspNetCoreCertificatesGenerationSourcesPackageVersion>2.1.0-preview2-30355</MicrosoftAspNetCoreCertificatesGenerationSourcesPackageVersion>
-    <MicrosoftAspNetCoreTestingPackageVersion>2.1.0-preview2-30355</MicrosoftAspNetCoreTestingPackageVersion>
-    <MicrosoftExtensionsCommandLineUtilsSourcesPackageVersion>2.1.0-preview2-30355</MicrosoftExtensionsCommandLineUtilsSourcesPackageVersion>
-    <MicrosoftExtensionsConfigurationUserSecretsPackageVersion>2.1.0-preview2-30355</MicrosoftExtensionsConfigurationUserSecretsPackageVersion>
-    <MicrosoftExtensionsProcessSourcesPackageVersion>2.1.0-preview2-30355</MicrosoftExtensionsProcessSourcesPackageVersion>
+    <InternalAspNetCoreSdkPackageVersion>2.1.0-preview2-15749</InternalAspNetCoreSdkPackageVersion>
+    <MicrosoftAspNetCoreCertificatesGenerationSourcesPackageVersion>2.1.0-preview2-30478</MicrosoftAspNetCoreCertificatesGenerationSourcesPackageVersion>
+    <MicrosoftAspNetCoreTestingPackageVersion>2.1.0-preview2-30478</MicrosoftAspNetCoreTestingPackageVersion>
+    <MicrosoftExtensionsCommandLineUtilsSourcesPackageVersion>2.1.0-preview2-30478</MicrosoftExtensionsCommandLineUtilsSourcesPackageVersion>
+    <MicrosoftExtensionsConfigurationUserSecretsPackageVersion>2.1.0-preview2-30478</MicrosoftExtensionsConfigurationUserSecretsPackageVersion>
+    <MicrosoftExtensionsProcessSourcesPackageVersion>2.1.0-preview2-30478</MicrosoftExtensionsProcessSourcesPackageVersion>
     <MicrosoftNETCoreApp20PackageVersion>2.0.0</MicrosoftNETCoreApp20PackageVersion>
-    <MicrosoftNETCoreApp21PackageVersion>2.1.0-preview2-26314-02</MicrosoftNETCoreApp21PackageVersion>
-    <MicrosoftNETTestSdkPackageVersion>15.6.0</MicrosoftNETTestSdkPackageVersion>
-    <SystemDataSqlClientPackageVersion>4.5.0-preview2-26313-01</SystemDataSqlClientPackageVersion>
-    <SystemSecurityCryptographyCngPackageVersion>4.5.0-preview2-26313-01</SystemSecurityCryptographyCngPackageVersion>
+    <MicrosoftNETCoreApp21PackageVersion>2.1.0-preview2-26326-03</MicrosoftNETCoreApp21PackageVersion>
+    <MicrosoftNETTestSdkPackageVersion>15.6.1</MicrosoftNETTestSdkPackageVersion>
+    <SystemDataSqlClientPackageVersion>4.5.0-preview2-26326-04</SystemDataSqlClientPackageVersion>
+    <SystemSecurityCryptographyCngPackageVersion>4.5.0-preview2-26326-04</SystemSecurityCryptographyCngPackageVersion>
     <VisualStudio_NewtonsoftJsonPackageVersion>9.0.1</VisualStudio_NewtonsoftJsonPackageVersion>
     <XunitPackageVersion>2.3.1</XunitPackageVersion>
     <XunitRunnerVisualStudioPackageVersion>2.4.0-beta.1.build3945</XunitRunnerVisualStudioPackageVersion>
diff --git a/korebuild-lock.txt b/korebuild-lock.txt
index e761020952..76d2c851ca 100644
--- a/korebuild-lock.txt
+++ b/korebuild-lock.txt
@@ -1,2 +1,2 @@
-version:2.1.0-preview2-15742
-commithash:21fbb0f2c3fe4a9216e2d59632b98cfd7d685962
+version:2.1.0-preview2-15749
+commithash:5544c9ab20fa5e24b9e155d8958a3c3b6f5f9df9