diff --git a/eng/Versions.props b/eng/Versions.props
index 610b8a7018..8a97458208 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -32,7 +32,7 @@
     <SystemReflectionMetadataVersion>1.6.0</SystemReflectionMetadataVersion>
     <!-- UWP and WinUI dependencies -->
     <MicrosoftNETCoreUniversalWindowsPlatformVersion>6.2.12</MicrosoftNETCoreUniversalWindowsPlatformVersion>
-    <MicrosoftProjectReunionVersion>0.8.0</MicrosoftProjectReunionVersion>
+    <MicrosoftWindowsAppSDKVersion>1.0.0-preview1</MicrosoftWindowsAppSDKVersion>
     <!-- / UWP and WinUI dependencies -->
     <MoqVersion>4.8.3</MoqVersion>
     <CastleCoreVersion>4.3.0</CastleCoreVersion>
diff --git a/src/TestFramework/Extension.WinUI/Extension.WinUI.csproj b/src/TestFramework/Extension.WinUI/Extension.WinUI.csproj
index 3d5de357e4..63cc02cd18 100644
--- a/src/TestFramework/Extension.WinUI/Extension.WinUI.csproj
+++ b/src/TestFramework/Extension.WinUI/Extension.WinUI.csproj
@@ -26,17 +26,19 @@
     <Import Project="$(NuGetPackageRoot)\Microbuild.Core\$(MicroBuildCoreVersion)\build\Microbuild.Core.props" />
   </ImportGroup>
   
-  <ItemGroup> 
-    <FrameworkReference Update="Microsoft.Windows.SDK.NET.Ref" RuntimeFrameworkVersion="10.0.18362.16" /> 
-    <FrameworkReference Update="Microsoft.Windows.SDK.NET.Ref" TargetingPackVersion="10.0.18362.16" />
-  </ItemGroup>
+  <!-- Workaround for https://github.com/microsoft/WindowsAppSDK/issues/1217 -->
+  <Target Name="FixBinPlaceBootstrapDll" BeforeTargets="BinPlaceBootstrapDll">
+    <PropertyGroup>
+      <_WindowsAppSDKFoundationPlatform>x86</_WindowsAppSDKFoundationPlatform>
+    </PropertyGroup>
+  </Target>
 
   <ItemGroup>
     <ProjectReference Include="$(RepoRoot)src\TestFramework\MSTest.Core\MSTest.Core.csproj" />
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.ProjectReunion" Version="$(MicrosoftProjectReunionVersion)" />
+    <PackageReference Include="Microsoft.WindowsAppSDK" Version="$(MicrosoftWindowsAppSDKVersion)" />
   </ItemGroup>
 
   <Import Project="$(RepoRoot)src\TestFramework\Extension.Shared\Extension.Shared.projitems" Label="Shared" />