diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 89fe31ebd03..da1ca39b2b7 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -65,9 +65,9 @@
       <Uri>https://github.com/dotnet/runtime</Uri>
       <Sha>b7a164882573af99eaf200c4b21808ecaf6dbb8c</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.Wpf.DncEng" Version="6.0.0-preview.4.21208.2">
+    <Dependency Name="Microsoft.DotNet.Wpf.DncEng" Version="6.0.0-preview.4.21209.2">
       <Uri>https://dev.azure.com/dnceng/internal/_git/dotnet-wpf-int</Uri>
-      <Sha>568d6bdfc4ddf9cfff8ef1cfb663a900c14e3139</Sha>
+      <Sha>f719b29a7f981497db46d6b04a8b0d75e389c388</Sha>
     </Dependency>
     <Dependency Name="System.IO.Packaging" Version="6.0.0-preview.4.21205.3" CoherentParentDependency="Microsoft.Private.Winforms">
       <Uri>https://github.com/dotnet/runtime</Uri>
diff --git a/eng/Versions.props b/eng/Versions.props
index d808d496d83..d2ec63a2211 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -89,6 +89,6 @@
     <SystemReflectionMetadataLoadContextPackage>System.Reflection.MetadataLoadContext</SystemReflectionMetadataLoadContextPackage>
   </PropertyGroup>
   <PropertyGroup>
-    <MicrosoftDotNetWpfDncEngVersion>6.0.0-preview.4.21208.2</MicrosoftDotNetWpfDncEngVersion>
+    <MicrosoftDotNetWpfDncEngVersion>6.0.0-preview.4.21209.2</MicrosoftDotNetWpfDncEngVersion>
   </PropertyGroup>
 </Project>