diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index a08038be9c4a882c5ed72a1cf22cc8aeb5a99191..01bb1f4173c15908b205d1c28f5171ed9f01ec78 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="5.0.0-preview.8.20328.2">
+    <Dependency Name="Microsoft.Private.Winforms" Version="5.0.0-preview.8.20328.4">
       <Uri>https://github.com/dotnet/winforms</Uri>
-      <Sha>cc0c82707b7cb37632549dbb8105be0f870f5cd8</Sha>
+      <Sha>eec805f48eca844907ab0a38463832cc02519a1c</Sha>
     </Dependency>
   </ProductDependencies>
   <ToolsetDependencies>
diff --git a/eng/Versions.props b/eng/Versions.props
index 4f60bb0bf8bb31f06cdd6e99a41dae0005bf5651..a5238b98c26677152809dc4dbb37b614e633123e 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -9,7 +9,7 @@
   </PropertyGroup>
   <!-- NuGet Package Versions -->
   <PropertyGroup>
-    <MicrosoftPrivateWinformsVersion>5.0.0-preview.8.20328.2</MicrosoftPrivateWinformsVersion>
+    <MicrosoftPrivateWinformsVersion>5.0.0-preview.8.20328.4</MicrosoftPrivateWinformsVersion>
   </PropertyGroup>
   <!-- Packages that come from https://github.com/dotnet/coreclr -->
   <PropertyGroup>