diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 590e8c43c696cec0986e50445e7ae06245a6b1d5..065822c5329c14c04d22eb2b531f3c80643d0b70 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-rtm.19564.3">
+    <Dependency Name="Microsoft.Private.Winforms" Version="4.8.1-rtm.19564.4">
       <Uri>https://github.com/dotnet/winforms</Uri>
-      <Sha>9fb9388f954d929d9f6213096fca6abdd99716e5</Sha>
+      <Sha>4bcd68c8b29476fc3c5ca1b496214584aadfdc84</Sha>
     </Dependency>
   </ProductDependencies>
   <ToolsetDependencies>
diff --git a/eng/Versions.props b/eng/Versions.props
index 35b8f18d91ddb99fbe68da4e038ae859168933bf..ebbcf3b84f859d28d3337ccfa6f0e9402300013e 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -10,7 +10,7 @@
   </PropertyGroup>
   <!-- NuGet Package Versions -->
   <PropertyGroup>
-    <MicrosoftPrivateWinformsVersion>4.8.1-rtm.19564.3</MicrosoftPrivateWinformsVersion>
+    <MicrosoftPrivateWinformsVersion>4.8.1-rtm.19564.4</MicrosoftPrivateWinformsVersion>
   </PropertyGroup>
   <!-- Packages that come from https://github.com/dotnet/coreclr -->
   <PropertyGroup>