diff --git a/ProtoTreeViewExample/ProtoTreeViewExample.csproj b/ProtoTreeViewExample/ProtoTreeViewExample.csproj
index 3aeadf8..9cdb8e9 100644
--- a/ProtoTreeViewExample/ProtoTreeViewExample.csproj
+++ b/ProtoTreeViewExample/ProtoTreeViewExample.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
-    <TargetFramework>net8.0-windows</TargetFramework>
+    <TargetFramework>net9.0-windows</TargetFramework>
     <UseWPF>true</UseWPF>
   </PropertyGroup>