diff --git a/.github/123.yml b/.github/123.yml
new file mode 100644
index 00000000000..8baf6d3d14f
--- /dev/null
+++ b/.github/123.yml
@@ -0,0 +1,17 @@
+name: .NET Core
+on: [push]
+
+jobs:
+  build:
+
+    runs-on: windows-latest
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: Install Nuget
+      uses: nuget/setup-nuget@v1
+      with:
+        nuget-version: '5.x'
+      
+    - name: Build
+      run: .\build.cmd -pack -ci -configuration Release -prepareMachine /p:Platform=x86
diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 50aea46784b..786de4834a2 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Dependencies>
   <ProductDependencies>
-    <Dependency Name="Microsoft.Private.Winforms" Version="4.8.1-servicing.20264.6">
+    <Dependency Name="Microsoft.Private.Winforms" Version="4.8.1-servicing.20213.2">
       <Uri>https://github.com/dotnet/winforms</Uri>
-      <Sha>4c0522e03b13e6a1c4412486643c148b1fd4ce41</Sha>
+      <Sha>ee014f89c09c1804af960c26279c46188963c2b6</Sha>
     </Dependency>
   </ProductDependencies>
   <ToolsetDependencies>
diff --git a/global.json b/global.json
index 934a32656ba..21baea4fa32 100644
--- a/global.json
+++ b/global.json
@@ -18,6 +18,7 @@
   "native-tools": {
     "strawberry-perl": "5.28.1.1-1",
     "net-framework-48-ref-assemblies": "0.0.0.1",
-    "dotnet-api-docs_netcoreapp3.0": "0.0.0.2"
+    "dotnet-api-docs_netcoreapp3.0": "0.0.0.2",
+    "msvcurt-c1xx": "0.0.0.9"
   }
 }