diff --git a/build/dependencies.props b/build/dependencies.props
index f82223286d..18090a50b2 100644
--- a/build/dependencies.props
+++ b/build/dependencies.props
@@ -4,20 +4,20 @@
   </PropertyGroup>
   <PropertyGroup Label="Package Versions">
     <BenchmarkDotNetPackageVersion>0.10.13</BenchmarkDotNetPackageVersion>
-    <InternalAspNetCoreSdkPackageVersion>2.2.0-preview1-17102</InternalAspNetCoreSdkPackageVersion>
-    <MicrosoftAspNetCoreBenchmarkRunnerSourcesPackageVersion>2.2.0-preview1-34823</MicrosoftAspNetCoreBenchmarkRunnerSourcesPackageVersion>
-    <MicrosoftAspNetCoreHtmlAbstractionsPackageVersion>2.2.0-preview1-34823</MicrosoftAspNetCoreHtmlAbstractionsPackageVersion>
-    <MicrosoftAspNetCoreTestingPackageVersion>2.2.0-preview1-34823</MicrosoftAspNetCoreTestingPackageVersion>
+    <InternalAspNetCoreSdkPackageVersion>2.2.0-preview1-20180731.1</InternalAspNetCoreSdkPackageVersion>
+    <MicrosoftAspNetCoreBenchmarkRunnerSourcesPackageVersion>2.2.0-preview1-34882</MicrosoftAspNetCoreBenchmarkRunnerSourcesPackageVersion>
+    <MicrosoftAspNetCoreHtmlAbstractionsPackageVersion>2.2.0-preview1-34882</MicrosoftAspNetCoreHtmlAbstractionsPackageVersion>
+    <MicrosoftAspNetCoreTestingPackageVersion>2.2.0-preview1-34882</MicrosoftAspNetCoreTestingPackageVersion>
     <MicrosoftBuildFrameworkPackageVersion>15.6.82</MicrosoftBuildFrameworkPackageVersion>
     <MicrosoftBuildPackageVersion>15.6.82</MicrosoftBuildPackageVersion>
     <MicrosoftBuildUtilitiesCorePackageVersion>15.6.82</MicrosoftBuildUtilitiesCorePackageVersion>
     <MicrosoftCodeAnalysisCommonPackageVersion>2.8.0</MicrosoftCodeAnalysisCommonPackageVersion>
     <MicrosoftCodeAnalysisCSharpPackageVersion>2.8.0</MicrosoftCodeAnalysisCSharpPackageVersion>
-    <MicrosoftExtensionsCommandLineUtilsSourcesPackageVersion>2.2.0-preview1-34823</MicrosoftExtensionsCommandLineUtilsSourcesPackageVersion>
-    <MicrosoftExtensionsCopyOnWriteDictionarySourcesPackageVersion>2.2.0-preview1-34823</MicrosoftExtensionsCopyOnWriteDictionarySourcesPackageVersion>
+    <MicrosoftExtensionsCommandLineUtilsSourcesPackageVersion>2.2.0-preview1-34882</MicrosoftExtensionsCommandLineUtilsSourcesPackageVersion>
+    <MicrosoftExtensionsCopyOnWriteDictionarySourcesPackageVersion>2.2.0-preview1-34882</MicrosoftExtensionsCopyOnWriteDictionarySourcesPackageVersion>
     <MicrosoftExtensionsDependencyModelPackageVersion>2.1.0</MicrosoftExtensionsDependencyModelPackageVersion>
-    <MicrosoftExtensionsHashCodeCombinerSourcesPackageVersion>2.2.0-preview1-34823</MicrosoftExtensionsHashCodeCombinerSourcesPackageVersion>
-    <MicrosoftExtensionsWebEncodersPackageVersion>2.2.0-preview1-34823</MicrosoftExtensionsWebEncodersPackageVersion>
+    <MicrosoftExtensionsHashCodeCombinerSourcesPackageVersion>2.2.0-preview1-34882</MicrosoftExtensionsHashCodeCombinerSourcesPackageVersion>
+    <MicrosoftExtensionsWebEncodersPackageVersion>2.2.0-preview1-34882</MicrosoftExtensionsWebEncodersPackageVersion>
     <MicrosoftNETCoreApp20PackageVersion>2.0.9</MicrosoftNETCoreApp20PackageVersion>
     <MicrosoftNETCoreApp21PackageVersion>2.1.2</MicrosoftNETCoreApp21PackageVersion>
     <MicrosoftNETCoreApp22PackageVersion>2.2.0-preview1-26618-02</MicrosoftNETCoreApp22PackageVersion>
diff --git a/korebuild-lock.txt b/korebuild-lock.txt
index 28cd6a5b03..b6efc7cfcb 100644
--- a/korebuild-lock.txt
+++ b/korebuild-lock.txt
@@ -1,2 +1,2 @@
-version:2.2.0-preview1-17102
-commithash:e7e2b5a97ca92cfc6acc4def534cb0901a6d1eb9
+version:2.2.0-preview1-20180731.1
+commithash:29fde58465439f4bb9df40830635ed758e063daf