diff --git a/NuGet.config b/NuGet.config
index 402854e2f050..3ac55518e8ee 100644
--- a/NuGet.config
+++ b/NuGet.config
@@ -4,28 +4,23 @@
     <clear />
     <!--Begin: Package sources managed by Dependency Flow automation. Do not edit the sources below.-->
     <!--  Begin: Package sources from dotnet-emsdk -->
-    <add key="darc-pub-dotnet-emsdk-6afd7b9" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-emsdk-6afd7b9f/nuget/v3/index.json" />
     <!--  End: Package sources from dotnet-emsdk -->
     <!--  Begin: Package sources from dotnet-format -->
     <add key="darc-pub-dotnet-format-c61d046" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-format-c61d046a/nuget/v3/index.json" />
     <!--  End: Package sources from dotnet-format -->
     <!--  Begin: Package sources from dotnet-aspnetcore -->
-    <add key="darc-int-dotnet-aspnetcore-8899cb3" value="https://pkgs.dev.azure.com/dnceng/internal/_packaging/darc-int-dotnet-aspnetcore-8899cb30/nuget/v3/index.json" />
     <!--  End: Package sources from dotnet-aspnetcore -->
     <!--  Begin: Package sources from DotNet-msbuild-Trusted -->
-    <add key="darc-pub-DotNet-msbuild-Trusted-12f3204" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-DotNet-msbuild-Trusted-12f32044/nuget/v3/index.json" />
+    <add key="darc-pub-DotNet-msbuild-Trusted-323d4b3" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-DotNet-msbuild-Trusted-323d4b37/nuget/v3/index.json" />
     <!--  End: Package sources from DotNet-msbuild-Trusted -->
     <!--  Begin: Package sources from dotnet-roslyn-analyzers -->
     <!--  End: Package sources from dotnet-roslyn-analyzers -->
     <!--  Begin: Package sources from dotnet-runtime -->
-    <add key="darc-int-dotnet-runtime-50c4cb9" value="https://pkgs.dev.azure.com/dnceng/internal/_packaging/darc-int-dotnet-runtime-50c4cb9f/nuget/v3/index.json" />
     <!--  End: Package sources from dotnet-runtime -->
     <!--  Begin: Package sources from dotnet-templating -->
-    <add key="darc-pub-dotnet-templating-9a10417" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-templating-9a104178/nuget/v3/index.json" />
     <add key="darc-pub-dotnet-templating-9b1c885" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-templating-9b1c8852/nuget/v3/index.json" />
     <!--  End: Package sources from dotnet-templating -->
     <!--  Begin: Package sources from dotnet-windowsdesktop -->
-    <add key="darc-int-dotnet-windowsdesktop-83fc500" value="https://pkgs.dev.azure.com/dnceng/internal/_packaging/darc-int-dotnet-windowsdesktop-83fc5002/nuget/v3/index.json" />
     <!--  End: Package sources from dotnet-windowsdesktop -->
     <!--  Begin: Package sources from dotnet-winforms -->
     <!--  End: Package sources from dotnet-winforms -->
@@ -52,17 +47,14 @@
     <!--  Begin: Package sources from dotnet-templating -->
     <!--  End: Package sources from dotnet-templating -->
     <!--  Begin: Package sources from dotnet-aspnetcore -->
-    <add key="darc-int-dotnet-aspnetcore-8899cb3" value="true" />
     <!--  Begin: Package sources from dotnet-emsdk -->
     <!--  End: Package sources from dotnet-emsdk -->
     <!--  Begin: Package sources from dotnet-format -->
     <!--  End: Package sources from dotnet-format -->
     <!--  End: Package sources from dotnet-aspnetcore -->
     <!--  Begin: Package sources from dotnet-runtime -->
-    <add key="darc-int-dotnet-runtime-50c4cb9" value="true" />
     <!--  End: Package sources from dotnet-runtime -->
     <!--  Begin: Package sources from dotnet-windowsdesktop -->
-    <add key="darc-int-dotnet-windowsdesktop-83fc500" value="true" />
     <!--  Begin: Package sources from dotnet-winforms -->
     <!--  End: Package sources from dotnet-winforms -->
     <!--  End: Package sources from dotnet-windowsdesktop -->
diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index fec90ecf39ef..70df3d935fa3 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -55,17 +55,17 @@
       <Uri>https://github.com/dotnet/emsdk</Uri>
       <Sha>6afd7b9f34943078f2e3b747f33350e5fe114269</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.Build" Version="17.10.26">
+    <Dependency Name="Microsoft.Build" Version="17.10.27">
       <Uri>https://github.com/dotnet/msbuild</Uri>
-      <Sha>12f3204401afd9eb4311789cdc9a74b496fcf895</Sha>
+      <Sha>323d4b37f1b3282f1cfbf6f0977aa8044d1b9020</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.Build.Localization" Version="17.10.26-servicing-25210-02">
+    <Dependency Name="Microsoft.Build.Localization" Version="17.10.27-servicing-25215-02">
       <Uri>https://github.com/dotnet/msbuild</Uri>
-      <Sha>12f3204401afd9eb4311789cdc9a74b496fcf895</Sha>
+      <Sha>323d4b37f1b3282f1cfbf6f0977aa8044d1b9020</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.SourceBuild.Intermediate.msbuild" Version="17.10.26-servicing-25210-02">
+    <Dependency Name="Microsoft.SourceBuild.Intermediate.msbuild" Version="17.10.27-servicing-25215-02">
       <Uri>https://github.com/dotnet/msbuild</Uri>
-      <Sha>12f3204401afd9eb4311789cdc9a74b496fcf895</Sha>
+      <Sha>323d4b37f1b3282f1cfbf6f0977aa8044d1b9020</Sha>
       <SourceBuild RepoName="msbuild" ManagedOnly="true" />
     </Dependency>
     <Dependency Name="Microsoft.FSharp.Compiler" Version="12.8.301-beta.24271.6">
diff --git a/eng/Versions.props b/eng/Versions.props
index ce19d7b7b0b5..3ebcf552180b 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -124,7 +124,7 @@
   </PropertyGroup>
   <PropertyGroup>
     <!-- Dependencies from https://github.com/Microsoft/msbuild -->
-    <MicrosoftBuildPackageVersion>17.10.26</MicrosoftBuildPackageVersion>
+    <MicrosoftBuildPackageVersion>17.10.27</MicrosoftBuildPackageVersion>
     <MicrosoftBuildCurrentPackageVersion>$(MicrosoftBuildPackageVersion)</MicrosoftBuildCurrentPackageVersion>
     <!-- Some tasks and the resolver will need to run in an MSBuild that is older than the very latest,
           so target one that matches the version in minimumMSBuildVersion.
@@ -133,7 +133,7 @@
     <MicrosoftBuildPackageVersion Condition="exists('$(RepoRoot)\src\Layout\redist\minimumMSBuildVersion') and '$(DotNetBuildFromSource)' != 'true'">$([System.IO.File]::ReadAllText('$(RepoRoot)\src\Layout\redist\minimumMSBuildVersion').Trim())</MicrosoftBuildPackageVersion>
     <MicrosoftBuildFrameworkPackageVersion>$(MicrosoftBuildPackageVersion)</MicrosoftBuildFrameworkPackageVersion>
     <MicrosoftBuildRuntimePackageVersion>$(MicrosoftBuildPackageVersion)</MicrosoftBuildRuntimePackageVersion>
-    <MicrosoftBuildLocalizationPackageVersion>17.10.26-servicing-25210-02</MicrosoftBuildLocalizationPackageVersion>
+    <MicrosoftBuildLocalizationPackageVersion>17.10.27-servicing-25215-02</MicrosoftBuildLocalizationPackageVersion>
     <MicrosoftBuildUtilitiesCorePackageVersion>$(MicrosoftBuildPackageVersion)</MicrosoftBuildUtilitiesCorePackageVersion>
     <MicrosoftBuildTasksCorePackageVersion>$(MicrosoftBuildPackageVersion)</MicrosoftBuildTasksCorePackageVersion>
     <MicrosoftBuildTasksCoreVersion>$(MicrosoftBuildTasksCorePackageVersion)</MicrosoftBuildTasksCoreVersion>