diff --git a/build/DependencyVersions.props b/build/DependencyVersions.props
index 7df49f9dc..e34395f65 100644
--- a/build/DependencyVersions.props
+++ b/build/DependencyVersions.props
@@ -17,7 +17,7 @@
   </PropertyGroup>
 
   <PropertyGroup>
-    <MicrosoftNETCoreAppPackageVersion>3.0.0-preview-27106-02</MicrosoftNETCoreAppPackageVersion>
+    <MicrosoftNETCoreAppPackageVersion>3.0.0-preview-27109-05</MicrosoftNETCoreAppPackageVersion>
     <MicrosoftNETCoreDotNetHostResolverPackageVersion>$(MicrosoftNETCoreAppPackageVersion)</MicrosoftNETCoreDotNetHostResolverPackageVersion>
   </PropertyGroup>
 
diff --git a/build/TestDependencyVersions.props b/build/TestDependencyVersions.props
index c66ffded4..0406a5668 100644
--- a/build/TestDependencyVersions.props
+++ b/build/TestDependencyVersions.props
@@ -4,7 +4,7 @@
     <MicrosoftDotNetCliUtilsPackageVersion>3.0.100-alpha1-20180711-1</MicrosoftDotNetCliUtilsPackageVersion>
     <MicrosoftDotNetCliCommandLinePackageVersion>0.1.1</MicrosoftDotNetCliCommandLinePackageVersion>
     <MicrosoftNETTestSdkPackageVersion>15.8.0</MicrosoftNETTestSdkPackageVersion>
-    <MicrosoftDotNetPlatformAbstractionsPackageVersion>3.0.0-preview-27106-02</MicrosoftDotNetPlatformAbstractionsPackageVersion>
+    <MicrosoftDotNetPlatformAbstractionsPackageVersion>3.0.0-preview-27109-05</MicrosoftDotNetPlatformAbstractionsPackageVersion>
     <MicrosoftDotNetProjectJsonMigrationPackageVersion>1.3.1</MicrosoftDotNetProjectJsonMigrationPackageVersion>
   </PropertyGroup>
 </Project>