diff --git a/build/dependencies.props b/build/dependencies.props
index 8da79df136..380b8d2342 100644
--- a/build/dependencies.props
+++ b/build/dependencies.props
@@ -3,13 +3,13 @@
     <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
   </PropertyGroup>
   <PropertyGroup Label="Package Versions">
-    <InternalAspNetCoreSdkPackageVersion>3.0.0-alpha1-10015</InternalAspNetCoreSdkPackageVersion>
-    <MicrosoftAspNetCoreCertificatesGenerationSourcesPackageVersion>3.0.0-alpha1-10173</MicrosoftAspNetCoreCertificatesGenerationSourcesPackageVersion>
-    <MicrosoftAspNetCoreTestingPackageVersion>3.0.0-alpha1-10173</MicrosoftAspNetCoreTestingPackageVersion>
-    <MicrosoftExtensionsCommandLineUtilsSourcesPackageVersion>3.0.0-alpha1-10173</MicrosoftExtensionsCommandLineUtilsSourcesPackageVersion>
-    <MicrosoftExtensionsConfigurationUserSecretsPackageVersion>3.0.0-alpha1-10173</MicrosoftExtensionsConfigurationUserSecretsPackageVersion>
-    <MicrosoftExtensionsProcessSourcesPackageVersion>3.0.0-alpha1-10173</MicrosoftExtensionsProcessSourcesPackageVersion>
-    <MicrosoftNETCoreApp30PackageVersion>3.0.0-preview1-26727-03</MicrosoftNETCoreApp30PackageVersion>
+    <InternalAspNetCoreSdkPackageVersion>3.0.0-alpha1-20180731.2</InternalAspNetCoreSdkPackageVersion>
+    <MicrosoftAspNetCoreCertificatesGenerationSourcesPackageVersion>3.0.0-alpha1-10221</MicrosoftAspNetCoreCertificatesGenerationSourcesPackageVersion>
+    <MicrosoftAspNetCoreTestingPackageVersion>3.0.0-alpha1-10221</MicrosoftAspNetCoreTestingPackageVersion>
+    <MicrosoftExtensionsCommandLineUtilsSourcesPackageVersion>3.0.0-alpha1-10221</MicrosoftExtensionsCommandLineUtilsSourcesPackageVersion>
+    <MicrosoftExtensionsConfigurationUserSecretsPackageVersion>3.0.0-alpha1-10221</MicrosoftExtensionsConfigurationUserSecretsPackageVersion>
+    <MicrosoftExtensionsProcessSourcesPackageVersion>3.0.0-alpha1-10221</MicrosoftExtensionsProcessSourcesPackageVersion>
+    <MicrosoftNETCoreApp30PackageVersion>3.0.0-preview1-26731-01</MicrosoftNETCoreApp30PackageVersion>
     <MicrosoftNETTestSdkPackageVersion>15.6.1</MicrosoftNETTestSdkPackageVersion>
     <NETStandardLibrary20PackageVersion>2.0.3</NETStandardLibrary20PackageVersion>
     <SystemDataSqlClientPackageVersion>4.6.0-preview1-26727-04</SystemDataSqlClientPackageVersion>
diff --git a/korebuild-lock.txt b/korebuild-lock.txt
index 8c70cbad9f..fe0f897b25 100644
--- a/korebuild-lock.txt
+++ b/korebuild-lock.txt
@@ -1,2 +1,2 @@
-version:3.0.0-alpha1-10015
-commithash:3f36e5c2f061712f76f2766c435d2555681d5c55
+version:3.0.0-alpha1-20180731.2
+commithash:1179f1083695ac9213c8a70a4d1d6c45a52caf41