diff --git a/build/dependencies.props b/build/dependencies.props
index cf8d747d54..add3596b38 100644
--- a/build/dependencies.props
+++ b/build/dependencies.props
@@ -3,20 +3,20 @@
     <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
   </PropertyGroup>
   <PropertyGroup Label="Package Versions">
-    <InternalAspNetCoreSdkPackageVersion>2.2.0-preview1-17102</InternalAspNetCoreSdkPackageVersion>
-    <MicrosoftAspNetCoreHostingAbstractionsPackageVersion>2.2.0-preview1-34823</MicrosoftAspNetCoreHostingAbstractionsPackageVersion>
-    <MicrosoftAspNetCoreHostingPackageVersion>2.2.0-preview1-34823</MicrosoftAspNetCoreHostingPackageVersion>
-    <MicrosoftAspNetCoreTestingPackageVersion>2.2.0-preview1-34823</MicrosoftAspNetCoreTestingPackageVersion>
+    <InternalAspNetCoreSdkPackageVersion>2.2.0-preview1-20180731.1</InternalAspNetCoreSdkPackageVersion>
+    <MicrosoftAspNetCoreHostingAbstractionsPackageVersion>2.2.0-preview1-34882</MicrosoftAspNetCoreHostingAbstractionsPackageVersion>
+    <MicrosoftAspNetCoreHostingPackageVersion>2.2.0-preview1-34882</MicrosoftAspNetCoreHostingPackageVersion>
+    <MicrosoftAspNetCoreTestingPackageVersion>2.2.0-preview1-34882</MicrosoftAspNetCoreTestingPackageVersion>
     <MicrosoftAzureKeyVaultPackageVersion>2.3.2</MicrosoftAzureKeyVaultPackageVersion>
-    <MicrosoftExtensionsConfigurationJsonPackageVersion>2.2.0-preview1-34823</MicrosoftExtensionsConfigurationJsonPackageVersion>
-    <MicrosoftExtensionsConfigurationPackageVersion>2.2.0-preview1-34823</MicrosoftExtensionsConfigurationPackageVersion>
-    <MicrosoftExtensionsDependencyInjectionAbstractionsPackageVersion>2.2.0-preview1-34823</MicrosoftExtensionsDependencyInjectionAbstractionsPackageVersion>
-    <MicrosoftExtensionsDependencyInjectionPackageVersion>2.2.0-preview1-34823</MicrosoftExtensionsDependencyInjectionPackageVersion>
-    <MicrosoftExtensionsLoggingAbstractionsPackageVersion>2.2.0-preview1-34823</MicrosoftExtensionsLoggingAbstractionsPackageVersion>
-    <MicrosoftExtensionsLoggingConsolePackageVersion>2.2.0-preview1-34823</MicrosoftExtensionsLoggingConsolePackageVersion>
-    <MicrosoftExtensionsLoggingPackageVersion>2.2.0-preview1-34823</MicrosoftExtensionsLoggingPackageVersion>
-    <MicrosoftExtensionsOptionsPackageVersion>2.2.0-preview1-34823</MicrosoftExtensionsOptionsPackageVersion>
-    <MicrosoftExtensionsWebEncodersSourcesPackageVersion>2.2.0-preview1-34823</MicrosoftExtensionsWebEncodersSourcesPackageVersion>
+    <MicrosoftExtensionsConfigurationJsonPackageVersion>2.2.0-preview1-34882</MicrosoftExtensionsConfigurationJsonPackageVersion>
+    <MicrosoftExtensionsConfigurationPackageVersion>2.2.0-preview1-34882</MicrosoftExtensionsConfigurationPackageVersion>
+    <MicrosoftExtensionsDependencyInjectionAbstractionsPackageVersion>2.2.0-preview1-34882</MicrosoftExtensionsDependencyInjectionAbstractionsPackageVersion>
+    <MicrosoftExtensionsDependencyInjectionPackageVersion>2.2.0-preview1-34882</MicrosoftExtensionsDependencyInjectionPackageVersion>
+    <MicrosoftExtensionsLoggingAbstractionsPackageVersion>2.2.0-preview1-34882</MicrosoftExtensionsLoggingAbstractionsPackageVersion>
+    <MicrosoftExtensionsLoggingConsolePackageVersion>2.2.0-preview1-34882</MicrosoftExtensionsLoggingConsolePackageVersion>
+    <MicrosoftExtensionsLoggingPackageVersion>2.2.0-preview1-34882</MicrosoftExtensionsLoggingPackageVersion>
+    <MicrosoftExtensionsOptionsPackageVersion>2.2.0-preview1-34882</MicrosoftExtensionsOptionsPackageVersion>
+    <MicrosoftExtensionsWebEncodersSourcesPackageVersion>2.2.0-preview1-34882</MicrosoftExtensionsWebEncodersSourcesPackageVersion>
     <MicrosoftIdentityModelClientsActiveDirectoryPackageVersion>3.14.2</MicrosoftIdentityModelClientsActiveDirectoryPackageVersion>
     <MicrosoftNETCoreApp20PackageVersion>2.0.9</MicrosoftNETCoreApp20PackageVersion>
     <MicrosoftNETCoreApp21PackageVersion>2.1.2</MicrosoftNETCoreApp21PackageVersion>
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