diff --git a/Synchronize_Trackball/Synchronize_Trackball.csproj b/Synchronize_Trackball/Synchronize_Trackball.csproj
index 52478d0..195e784 100644
--- a/Synchronize_Trackball/Synchronize_Trackball.csproj
+++ b/Synchronize_Trackball/Synchronize_Trackball.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
-    <TargetFramework>net8.0-windows</TargetFramework>
+    <TargetFramework>net9.0-windows</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
     <UseWPF>true</UseWPF>