diff --git a/EchoTcpServerTests/EchoTcpServerTests.csproj b/EchoTcpServerTests/EchoTcpServerTests.csproj
index 50d14da..6c96f37 100644
--- a/EchoTcpServerTests/EchoTcpServerTests.csproj
+++ b/EchoTcpServerTests/EchoTcpServerTests.csproj
@@ -24,7 +24,7 @@
         <PackageReference Include="Moq" Version="4.20.72" />
         <PackageReference Include="NetArchTest.Rules" Version="1.3.2" />
         <PackageReference Include="NUnit" Version="4.5.1" />
-        <PackageReference Include="NUnit.Analyzers" Version="3.9.0" />
+        <PackageReference Include="NUnit.Analyzers" Version="4.12.0" />
         <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
     </ItemGroup>