diff --git a/build/dependencies.props b/build/dependencies.props
index cacae4ac65..f72f6fb109 100644
--- a/build/dependencies.props
+++ b/build/dependencies.props
@@ -97,7 +97,7 @@
   <!-- ASP.NET Core Tools feed -->
   <PropertyGroup>
     <AspNetCoreToolsFeed>https://dotnet.myget.org/F/aspnetcore-tools/api/v3/index.json</AspNetCoreToolsFeed>
-    <InternalAspNetCoreSdkPackageVersion>2.1.0-preview1-15557</InternalAspNetCoreSdkPackageVersion>
+    <InternalAspNetCoreSdkPackageVersion>2.1.0-preview1-15551</InternalAspNetCoreSdkPackageVersion>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/korebuild-lock.txt b/korebuild-lock.txt
index 3355564175..86352477bb 100644
--- a/korebuild-lock.txt
+++ b/korebuild-lock.txt
@@ -1,2 +1,2 @@
-version:2.1.0-preview1-15557
-commithash:eaef791ebeccb3984515837b5eded474d66de048
+version:2.1.0-preview1-15551
+commithash:8fad9553b48533fddbb16a423ea55b9710ea2e63