diff --git a/LeetCodeNote.Test/LeetCodeNote.Test.csproj b/LeetCodeNote.Test/LeetCodeNote.Test.csproj
index 4f0dd46..02fd9ab 100644
--- a/LeetCodeNote.Test/LeetCodeNote.Test.csproj
+++ b/LeetCodeNote.Test/LeetCodeNote.Test.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <Nullable>enable</Nullable>
 
     <IsPackable>false</IsPackable>