diff --git a/Wpf.Windows.CategoryWindow.csproj b/Wpf.Windows.CategoryWindow.csproj
index fc4e200..855a9d9 100644
--- a/Wpf.Windows.CategoryWindow.csproj
+++ b/Wpf.Windows.CategoryWindow.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <TargetFramework>net8.0-windows7.0</TargetFramework>