diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index bf565464937..f0574cc90c1 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -49,9 +49,9 @@
       <Uri>https://github.com/dotnet/runtime</Uri>
       <Sha>90b8ddd7a6b28e57aebed7d478547ce07b9b60a6</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.Wpf.DncEng" Version="6.0.0-preview.7.21365.3">
+    <Dependency Name="Microsoft.DotNet.Wpf.DncEng" Version="6.0.0-preview.7.21366.2">
       <Uri>https://dev.azure.com/dnceng/internal/_git/dotnet-wpf-int</Uri>
-      <Sha>33f35656726ed554319d5649b2487765487f6db3</Sha>
+      <Sha>e544d7d2cf38f3754fc1335e595907e4828bdfa7</Sha>
     </Dependency>
     <Dependency Name="System.IO.Packaging" Version="6.0.0-preview.7.21365.2" CoherentParentDependency="Microsoft.Private.Winforms">
       <Uri>https://github.com/dotnet/runtime</Uri>
diff --git a/eng/Versions.props b/eng/Versions.props
index f446d4b7876..0ad24c0edc8 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -81,6 +81,6 @@
     <SystemReflectionMetadataLoadContextPackage>System.Reflection.MetadataLoadContext</SystemReflectionMetadataLoadContextPackage>
   </PropertyGroup>
   <PropertyGroup>
-    <MicrosoftDotNetWpfDncEngVersion>6.0.0-preview.7.21365.3</MicrosoftDotNetWpfDncEngVersion>
+    <MicrosoftDotNetWpfDncEngVersion>6.0.0-preview.7.21366.2</MicrosoftDotNetWpfDncEngVersion>
   </PropertyGroup>
 </Project>