diff --git a/tests/CopilotCLI.Tests/CopilotCLI.Tests.csproj b/tests/CopilotCLI.Tests/CopilotCLI.Tests.csproj
index 42ed85f..48f7499 100644
--- a/tests/CopilotCLI.Tests/CopilotCLI.Tests.csproj
+++ b/tests/CopilotCLI.Tests/CopilotCLI.Tests.csproj
@@ -23,7 +23,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
     <PackageReference Include="xunit" Version="2.9.3" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="4.0.0" />
   </ItemGroup>
 
 </Project>