diff --git a/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/Api/ApiApprovalTests.cs b/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/Api/ApiApprovalTests.cs
index a7e4c439c..ebec9c752 100644
--- a/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/Api/ApiApprovalTests.cs
+++ b/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/Api/ApiApprovalTests.cs
@@ -10,7 +10,6 @@
 using VerifyTests;
 using VerifyXunit;
 using Xunit;
-using Xunit.Abstractions;
 
 namespace ReactiveTests.Tests.Api
 {
@@ -19,8 +18,7 @@ public class ApiApprovalTests :
     {
         VerifySettings verifySettings;
 
-        public ApiApprovalTests(ITestOutputHelper output) :
-            base(output)
+        public ApiApprovalTests()
         {
             verifySettings = new VerifySettings();
             verifySettings.UseExtension("cs");
diff --git a/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/DiffPlexReporter.cs b/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/DiffPlexReporter.cs
index a900bc597..66b2f8018 100644
--- a/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/DiffPlexReporter.cs
+++ b/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/DiffPlexReporter.cs
@@ -13,7 +13,7 @@ namespace ReactiveTests.Tests
 {
     public static class DiffPlexReporter
     {
-        public static async Task Report(string receivedFile, string verifiedFile)
+        public static async Task Report(string receivedFile, string verifiedFile, string? message)
         {
             #if(!DEBUG)
             var receivedText = File.ReadAllText(receivedFile);