diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 6353cf2f4fa..9920e23ab8a 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -61,9 +61,9 @@
       <Uri>https://github.com/dotnet/runtime</Uri>
       <Sha>f584c7401a24781b4c8e8e2a8097b85462ee4941</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.Wpf.DncEng" Version="6.0.0-preview.6.21276.2">
+    <Dependency Name="Microsoft.DotNet.Wpf.DncEng" Version="6.0.0-preview.6.21277.2">
       <Uri>https://dev.azure.com/dnceng/internal/_git/dotnet-wpf-int</Uri>
-      <Sha>e33701c477ca5dead024d2bcb3c6e6b5849dc453</Sha>
+      <Sha>69261f34a7211a8adeebc0a59fa7d957c4b66987</Sha>
     </Dependency>
     <Dependency Name="System.IO.Packaging" Version="6.0.0-preview.6.21276.1" CoherentParentDependency="Microsoft.Private.Winforms">
       <Uri>https://github.com/dotnet/runtime</Uri>
diff --git a/eng/Versions.props b/eng/Versions.props
index 04b478071ba..1c2e624b10e 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -84,6 +84,6 @@
     <SystemReflectionMetadataLoadContextPackage>System.Reflection.MetadataLoadContext</SystemReflectionMetadataLoadContextPackage>
   </PropertyGroup>
   <PropertyGroup>
-    <MicrosoftDotNetWpfDncEngVersion>6.0.0-preview.6.21276.2</MicrosoftDotNetWpfDncEngVersion>
+    <MicrosoftDotNetWpfDncEngVersion>6.0.0-preview.6.21277.2</MicrosoftDotNetWpfDncEngVersion>
   </PropertyGroup>
 </Project>