diff --git a/TestProjects/UnityMCPTests/Assets/Tests/EditMode/Services/PackageUpdateServiceTests.cs b/TestProjects/UnityMCPTests/Assets/Tests/EditMode/Services/PackageUpdateServiceTests.cs
index 1eced451e..783c09e27 100644
--- a/TestProjects/UnityMCPTests/Assets/Tests/EditMode/Services/PackageUpdateServiceTests.cs
+++ b/TestProjects/UnityMCPTests/Assets/Tests/EditMode/Services/PackageUpdateServiceTests.cs
@@ -342,7 +342,7 @@ public override bool IsGitInstallation()
             return IsGitInstallationResult;
         }
 
-        protected override string FetchLatestVersionFromGitHub()
+        protected override string FetchLatestVersionFromGitHub(string branch)
         {
             GitFetchCalled = true;
             return GitFetchResult;