diff --git a/build/dependencies.props b/build/dependencies.props
index c96792579e..bac8b15b76 100644
--- a/build/dependencies.props
+++ b/build/dependencies.props
@@ -4,29 +4,29 @@
   </PropertyGroup>
   <PropertyGroup Label="Package Versions">
     <BenchmarkDotNetPackageVersion>0.10.13</BenchmarkDotNetPackageVersion>
-    <InternalAspNetCoreSdkPackageVersion>2.2.0-preview1-20180807.2</InternalAspNetCoreSdkPackageVersion>
-    <MicrosoftAspNetCoreBenchmarkRunnerSourcesPackageVersion>2.2.0-preview1-34967</MicrosoftAspNetCoreBenchmarkRunnerSourcesPackageVersion>
-    <MicrosoftAspNetCoreHostingAbstractionsPackageVersion>2.2.0-preview1-34967</MicrosoftAspNetCoreHostingAbstractionsPackageVersion>
-    <MicrosoftAspNetCoreHttpAbstractionsPackageVersion>2.2.0-preview1-34967</MicrosoftAspNetCoreHttpAbstractionsPackageVersion>
-    <MicrosoftAspNetCoreHttpExtensionsPackageVersion>2.2.0-preview1-34967</MicrosoftAspNetCoreHttpExtensionsPackageVersion>
-    <MicrosoftAspNetCoreHttpPackageVersion>2.2.0-preview1-34967</MicrosoftAspNetCoreHttpPackageVersion>
-    <MicrosoftAspNetCoreServerKestrelCorePackageVersion>2.2.0-preview1-34967</MicrosoftAspNetCoreServerKestrelCorePackageVersion>
-    <MicrosoftAspNetCoreServerKestrelHttpsPackageVersion>2.2.0-preview1-34967</MicrosoftAspNetCoreServerKestrelHttpsPackageVersion>
-    <MicrosoftAspNetCoreServerKestrelPackageVersion>2.2.0-preview1-34967</MicrosoftAspNetCoreServerKestrelPackageVersion>
-    <MicrosoftAspNetCoreTestHostPackageVersion>2.2.0-preview1-34967</MicrosoftAspNetCoreTestHostPackageVersion>
-    <MicrosoftExtensionsConfigurationAbstractionsPackageVersion>2.2.0-preview1-34967</MicrosoftExtensionsConfigurationAbstractionsPackageVersion>
-    <MicrosoftExtensionsConfigurationBinderPackageVersion>2.2.0-preview1-34967</MicrosoftExtensionsConfigurationBinderPackageVersion>
-    <MicrosoftExtensionsConfigurationJsonPackageVersion>2.2.0-preview1-34967</MicrosoftExtensionsConfigurationJsonPackageVersion>
-    <MicrosoftExtensionsDependencyInjectionPackageVersion>2.2.0-preview1-34967</MicrosoftExtensionsDependencyInjectionPackageVersion>
-    <MicrosoftExtensionsFileProvidersAbstractionsPackageVersion>2.2.0-preview1-34967</MicrosoftExtensionsFileProvidersAbstractionsPackageVersion>
-    <MicrosoftExtensionsLoggingAbstractionsPackageVersion>2.2.0-preview1-34967</MicrosoftExtensionsLoggingAbstractionsPackageVersion>
-    <MicrosoftExtensionsLoggingConsolePackageVersion>2.2.0-preview1-34967</MicrosoftExtensionsLoggingConsolePackageVersion>
-    <MicrosoftExtensionsLoggingTestingPackageVersion>2.2.0-preview1-34967</MicrosoftExtensionsLoggingTestingPackageVersion>
-    <MicrosoftExtensionsOptionsConfigurationExtensionsPackageVersion>2.2.0-preview1-34967</MicrosoftExtensionsOptionsConfigurationExtensionsPackageVersion>
-    <MicrosoftExtensionsOptionsPackageVersion>2.2.0-preview1-34967</MicrosoftExtensionsOptionsPackageVersion>
+    <InternalAspNetCoreSdkPackageVersion>2.2.0-preview1-20180821.1</InternalAspNetCoreSdkPackageVersion>
+    <MicrosoftAspNetCoreBenchmarkRunnerSourcesPackageVersion>2.2.0-preview2-35143</MicrosoftAspNetCoreBenchmarkRunnerSourcesPackageVersion>
+    <MicrosoftAspNetCoreHostingAbstractionsPackageVersion>2.2.0-preview2-35143</MicrosoftAspNetCoreHostingAbstractionsPackageVersion>
+    <MicrosoftAspNetCoreHttpAbstractionsPackageVersion>2.2.0-preview2-35143</MicrosoftAspNetCoreHttpAbstractionsPackageVersion>
+    <MicrosoftAspNetCoreHttpExtensionsPackageVersion>2.2.0-preview2-35143</MicrosoftAspNetCoreHttpExtensionsPackageVersion>
+    <MicrosoftAspNetCoreHttpPackageVersion>2.2.0-preview2-35143</MicrosoftAspNetCoreHttpPackageVersion>
+    <MicrosoftAspNetCoreServerKestrelCorePackageVersion>2.2.0-preview2-35143</MicrosoftAspNetCoreServerKestrelCorePackageVersion>
+    <MicrosoftAspNetCoreServerKestrelHttpsPackageVersion>2.2.0-preview2-35143</MicrosoftAspNetCoreServerKestrelHttpsPackageVersion>
+    <MicrosoftAspNetCoreServerKestrelPackageVersion>2.2.0-preview2-35143</MicrosoftAspNetCoreServerKestrelPackageVersion>
+    <MicrosoftAspNetCoreTestHostPackageVersion>2.2.0-preview2-35143</MicrosoftAspNetCoreTestHostPackageVersion>
+    <MicrosoftExtensionsConfigurationAbstractionsPackageVersion>2.2.0-preview2-35143</MicrosoftExtensionsConfigurationAbstractionsPackageVersion>
+    <MicrosoftExtensionsConfigurationBinderPackageVersion>2.2.0-preview2-35143</MicrosoftExtensionsConfigurationBinderPackageVersion>
+    <MicrosoftExtensionsConfigurationJsonPackageVersion>2.2.0-preview2-35143</MicrosoftExtensionsConfigurationJsonPackageVersion>
+    <MicrosoftExtensionsDependencyInjectionPackageVersion>2.2.0-preview2-35143</MicrosoftExtensionsDependencyInjectionPackageVersion>
+    <MicrosoftExtensionsFileProvidersAbstractionsPackageVersion>2.2.0-preview2-35143</MicrosoftExtensionsFileProvidersAbstractionsPackageVersion>
+    <MicrosoftExtensionsLoggingAbstractionsPackageVersion>2.2.0-preview2-35143</MicrosoftExtensionsLoggingAbstractionsPackageVersion>
+    <MicrosoftExtensionsLoggingConsolePackageVersion>2.2.0-preview2-35143</MicrosoftExtensionsLoggingConsolePackageVersion>
+    <MicrosoftExtensionsLoggingTestingPackageVersion>2.2.0-preview2-35143</MicrosoftExtensionsLoggingTestingPackageVersion>
+    <MicrosoftExtensionsOptionsConfigurationExtensionsPackageVersion>2.2.0-preview2-35143</MicrosoftExtensionsOptionsConfigurationExtensionsPackageVersion>
+    <MicrosoftExtensionsOptionsPackageVersion>2.2.0-preview2-35143</MicrosoftExtensionsOptionsPackageVersion>
     <MicrosoftNETCoreApp21PackageVersion>2.1.2</MicrosoftNETCoreApp21PackageVersion>
     <MicrosoftNETCoreApp22PackageVersion>2.2.0-preview1-26618-02</MicrosoftNETCoreApp22PackageVersion>
-    <MicrosoftNetHttpHeadersPackageVersion>2.2.0-preview1-34967</MicrosoftNetHttpHeadersPackageVersion>
+    <MicrosoftNetHttpHeadersPackageVersion>2.2.0-preview2-35143</MicrosoftNetHttpHeadersPackageVersion>
     <MicrosoftNETTestSdkPackageVersion>15.6.1</MicrosoftNETTestSdkPackageVersion>
     <MoqPackageVersion>4.7.49</MoqPackageVersion>
     <NETStandardLibrary20PackageVersion>2.0.3</NETStandardLibrary20PackageVersion>
diff --git a/korebuild-lock.txt b/korebuild-lock.txt
index 3fbcc80189..ad704918df 100644
--- a/korebuild-lock.txt
+++ b/korebuild-lock.txt
@@ -1,2 +1,2 @@
-version:2.2.0-preview1-20180807.2
-commithash:11495dbd236104434e08cb1152fcb58cf2a20923
+version:2.2.0-preview1-20180821.1
+commithash:c8d0cc52cd1abb697be24e288ffd54f8fae8bf17