diff --git a/build/dependencies.props b/build/dependencies.props
index fe1583adba..a3c842b01e 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-preview2-15728</InternalAspNetCoreSdkPackageVersion>
-    <MicrosoftAspNetCoreTestingPackageVersion>2.1.0-preview3-30392</MicrosoftAspNetCoreTestingPackageVersion>
-    <MicrosoftExtensionsActivatorUtilitiesSourcesPackageVersion>2.1.0-preview3-30392</MicrosoftExtensionsActivatorUtilitiesSourcesPackageVersion>
-    <MicrosoftExtensionsCopyOnWriteDictionarySourcesPackageVersion>2.1.0-preview3-30392</MicrosoftExtensionsCopyOnWriteDictionarySourcesPackageVersion>
-    <MicrosoftExtensionsDependencyInjectionPackageVersion>2.1.0-preview3-30392</MicrosoftExtensionsDependencyInjectionPackageVersion>
-    <MicrosoftExtensionsFileProvidersAbstractionsPackageVersion>2.1.0-preview3-30392</MicrosoftExtensionsFileProvidersAbstractionsPackageVersion>
-    <MicrosoftExtensionsLoggingAbstractionsPackageVersion>2.1.0-preview3-30392</MicrosoftExtensionsLoggingAbstractionsPackageVersion>
-    <MicrosoftExtensionsObjectPoolPackageVersion>2.1.0-preview3-30392</MicrosoftExtensionsObjectPoolPackageVersion>
-    <MicrosoftExtensionsOptionsPackageVersion>2.1.0-preview3-30392</MicrosoftExtensionsOptionsPackageVersion>
-    <MicrosoftExtensionsPrimitivesPackageVersion>2.1.0-preview3-30392</MicrosoftExtensionsPrimitivesPackageVersion>
-    <MicrosoftExtensionsWebEncodersSourcesPackageVersion>2.1.0-preview3-30392</MicrosoftExtensionsWebEncodersSourcesPackageVersion>
+    <InternalAspNetCoreSdkPackageVersion>2.1.0-preview3-17001</InternalAspNetCoreSdkPackageVersion>
+    <MicrosoftAspNetCoreTestingPackageVersion>2.1.0-preview3-32037</MicrosoftAspNetCoreTestingPackageVersion>
+    <MicrosoftExtensionsActivatorUtilitiesSourcesPackageVersion>2.1.0-preview3-32037</MicrosoftExtensionsActivatorUtilitiesSourcesPackageVersion>
+    <MicrosoftExtensionsCopyOnWriteDictionarySourcesPackageVersion>2.1.0-preview3-32037</MicrosoftExtensionsCopyOnWriteDictionarySourcesPackageVersion>
+    <MicrosoftExtensionsDependencyInjectionPackageVersion>2.1.0-preview3-32037</MicrosoftExtensionsDependencyInjectionPackageVersion>
+    <MicrosoftExtensionsFileProvidersAbstractionsPackageVersion>2.1.0-preview3-32037</MicrosoftExtensionsFileProvidersAbstractionsPackageVersion>
+    <MicrosoftExtensionsLoggingAbstractionsPackageVersion>2.1.0-preview3-32037</MicrosoftExtensionsLoggingAbstractionsPackageVersion>
+    <MicrosoftExtensionsObjectPoolPackageVersion>2.1.0-preview3-32037</MicrosoftExtensionsObjectPoolPackageVersion>
+    <MicrosoftExtensionsOptionsPackageVersion>2.1.0-preview3-32037</MicrosoftExtensionsOptionsPackageVersion>
+    <MicrosoftExtensionsPrimitivesPackageVersion>2.1.0-preview3-32037</MicrosoftExtensionsPrimitivesPackageVersion>
+    <MicrosoftExtensionsWebEncodersSourcesPackageVersion>2.1.0-preview3-32037</MicrosoftExtensionsWebEncodersSourcesPackageVersion>
     <MicrosoftNETCoreApp20PackageVersion>2.0.0</MicrosoftNETCoreApp20PackageVersion>
     <MicrosoftNETCoreApp21PackageVersion>2.1.0-preview2-26314-02</MicrosoftNETCoreApp21PackageVersion>
     <MicrosoftNETTestSdkPackageVersion>15.6.1</MicrosoftNETTestSdkPackageVersion>
diff --git a/korebuild-lock.txt b/korebuild-lock.txt
index 138d848db1..3a326c7d58 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-preview3-17001
+commithash:dda68c56abf0d3b911fe6a2315872c446b314585