diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index c4e169f89..ae2349b64 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -42,9 +42,9 @@
       <Uri>https://github.com/dotnet/templating</Uri>
       <Sha>e8d6da33000a416b2b36b4f04b1756dcc99f671d</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.Dotnet.Toolset.Internal" Version="3.0.100-rc1.19421.15">
+    <Dependency Name="Microsoft.Dotnet.Toolset.Internal" Version="3.0.100-rc1.19421.18">
       <Uri>https://github.com/dotnet/toolset</Uri>
-      <Sha>615dec8d35d55b4db0506d488ba466f0ddd50058</Sha>
+      <Sha>6cdedf0056ae1b930cb8dca03d83428a599cdb8d</Sha>
     </Dependency>
     <Dependency Name="Microsoft.NET.Sdk" Version="3.0.100-preview9.19413.5" CoherentParentDependency="Microsoft.Dotnet.Toolset.Internal">
       <Uri>https://github.com/dotnet/sdk</Uri>
diff --git a/eng/Versions.props b/eng/Versions.props
index 2865d7bd4..f7bee5a9c 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -12,7 +12,7 @@
     <PreReleaseVersionLabel>preview</PreReleaseVersionLabel>
   </PropertyGroup>
   <PropertyGroup>
-    <MicrosoftDotnetToolsetInternalPackageVersion>3.0.100-rc1.19421.15</MicrosoftDotnetToolsetInternalPackageVersion>
+    <MicrosoftDotnetToolsetInternalPackageVersion>3.0.100-rc1.19421.18</MicrosoftDotnetToolsetInternalPackageVersion>
   </PropertyGroup>
   <PropertyGroup>
     <!-- Dependency from https://github.com/dotnet/winforms -->