diff --git a/Directory.Build.props b/Directory.Build.props
index 291e3b4f05..712f3d5369 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -27,6 +27,7 @@
   <PropertyGroup>
     <NetFrameworkMinimum>net462</NetFrameworkMinimum>
     <UwpMinimum>uap10.0.16299</UwpMinimum>
+    <UwpNet9Minimum>net8.0-windows10.0.26100.0</UwpNet9Minimum>
     <WinUiMinimum>net6.0-windows10.0.18362.0</WinUiMinimum>
     <NetCurrent>net8.0</NetCurrent>
 
diff --git a/src/TestFramework/TestFramework.Extensions/TestFramework.Extensions.csproj b/src/TestFramework/TestFramework.Extensions/TestFramework.Extensions.csproj
index a8bf591bb6..9dc548fd01 100644
--- a/src/TestFramework/TestFramework.Extensions/TestFramework.Extensions.csproj
+++ b/src/TestFramework/TestFramework.Extensions/TestFramework.Extensions.csproj
@@ -5,7 +5,7 @@
   <Import Project="Sdk.props" Sdk="Microsoft.NET.Sdk" Condition=" '$(OS)' != 'Windows_NT' " />
 
   <PropertyGroup>
-    <TargetFrameworks Condition=" '$(OS)' == 'Windows_NT' ">netstandard2.0;$(NetFrameworkMinimum);$(SupportedNetFrameworks);$(UwpMinimum);$(WinUiMinimum);net8.0-windows10.0.26100.0</TargetFrameworks>
+    <TargetFrameworks Condition=" '$(OS)' == 'Windows_NT' ">netstandard2.0;$(NetFrameworkMinimum);$(SupportedNetFrameworks);$(UwpMinimum);$(UwpNet9Minimum);$(WinUiMinimum)</TargetFrameworks>
     <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">$(SupportedNetFrameworks);netstandard2.0</TargetFrameworks>
     <UseAssemblyVersion14>true</UseAssemblyVersion14>
   </PropertyGroup>
@@ -50,7 +50,7 @@
   <PropertyGroup Condition=" '$(TargetFramework)' == '$(UwpMinimum)' ">
     <DefineConstants>$(DefineConstants);NETFX_CORE;WINDOWS_UWP</DefineConstants>
   </PropertyGroup>
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'net8.0-windows10.0.26100.0' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == '$(UwpNet9Minimum)' ">
     <DefineConstants>$(DefineConstants);WINDOWS_UWP</DefineConstants>
   </PropertyGroup>