diff --git a/src/NServiceBus.CustomChecks.AcceptanceTests/NServiceBus.CustomChecks.AcceptanceTests.csproj b/src/NServiceBus.CustomChecks.AcceptanceTests/NServiceBus.CustomChecks.AcceptanceTests.csproj
index 15bf353..dae23db 100644
--- a/src/NServiceBus.CustomChecks.AcceptanceTests/NServiceBus.CustomChecks.AcceptanceTests.csproj
+++ b/src/NServiceBus.CustomChecks.AcceptanceTests/NServiceBus.CustomChecks.AcceptanceTests.csproj
@@ -11,9 +11,9 @@
   <ItemGroup>
     <PackageReference Include="GitHubActionsTestLogger" Version="2.4.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
-    <PackageReference Include="NServiceBus.AcceptanceTesting" Version="9.1.2" />
-    <PackageReference Include="NUnit" Version="3.14.0" />
-    <PackageReference Include="NUnit3TestAdapter" Version="4.6.0" />
+    <PackageReference Include="NServiceBus.AcceptanceTesting" Version="9.2.11" />
+    <PackageReference Include="NUnit" Version="4.4.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="6.1.0" />
   </ItemGroup>
 
 </Project>
diff --git a/src/NServiceBus.CustomChecks.AcceptanceTests/When_not_setting_ttl.cs b/src/NServiceBus.CustomChecks.AcceptanceTests/When_not_setting_ttl.cs
index a0943de..62539ec 100644
--- a/src/NServiceBus.CustomChecks.AcceptanceTests/When_not_setting_ttl.cs
+++ b/src/NServiceBus.CustomChecks.AcceptanceTests/When_not_setting_ttl.cs
@@ -26,7 +26,7 @@ public async Task Should_use_four_times_the_interval_value_for_ttl()
             var message = context.Queue.Dequeue();
 
             var constraint = message.UnicastTransportOperations.First().Properties.DiscardIfNotReceivedBefore;
-            Assert.AreEqual(TimeSpan.FromSeconds(4), constraint.MaxTime);
+            Assert.That(constraint.MaxTime, Is.EqualTo(TimeSpan.FromSeconds(4)));
         }
 
         class Context : ScenarioContext
diff --git a/src/NServiceBus.CustomChecks.AcceptanceTests/When_registering_custom_check_in_send_only_endpoint.cs b/src/NServiceBus.CustomChecks.AcceptanceTests/When_registering_custom_check_in_send_only_endpoint.cs
index d738714..f8a3f2c 100644
--- a/src/NServiceBus.CustomChecks.AcceptanceTests/When_registering_custom_check_in_send_only_endpoint.cs
+++ b/src/NServiceBus.CustomChecks.AcceptanceTests/When_registering_custom_check_in_send_only_endpoint.cs
@@ -23,12 +23,12 @@ public async Task Should_send_result_to_service_control()
                 .Done(c => c.WasCalled)
                 .Run();
 
-            Assert.True(context.WasCalled);
-            Assert.Null(context.FailureReason);
-            Assert.AreEqual("SuccessfulCustomCheck", context.CustomCheckId);
-            Assert.AreEqual("CustomCheck", context.Category);
+            Assert.That(context.WasCalled, Is.True);
+            Assert.That(context.FailureReason, Is.Null);
+            Assert.That(context.CustomCheckId, Is.EqualTo("SuccessfulCustomCheck"));
+            Assert.That(context.Category, Is.EqualTo("CustomCheck"));
             Assert.That(context.ReportedAt, Is.EqualTo(DateTime.UtcNow).Within(TimeSpan.FromMinutes(3.0)));
-            Assert.False(context.Headers.ContainsKey(Headers.ReplyToAddress));
+            Assert.That(context.Headers.ContainsKey(Headers.ReplyToAddress), Is.False);
         }
 
         class Context : ScenarioContext
diff --git a/src/NServiceBus.CustomChecks.AcceptanceTests/When_registering_custom_check_which_fails.cs b/src/NServiceBus.CustomChecks.AcceptanceTests/When_registering_custom_check_which_fails.cs
index c284a91..41896df 100644
--- a/src/NServiceBus.CustomChecks.AcceptanceTests/When_registering_custom_check_which_fails.cs
+++ b/src/NServiceBus.CustomChecks.AcceptanceTests/When_registering_custom_check_which_fails.cs
@@ -22,10 +22,10 @@ public async Task Should_send_result_to_service_control()
                 .Done(c => c.WasCalled)
                 .Run(TimeSpan.FromSeconds(10));
 
-            Assert.True(context.WasCalled);
-            Assert.AreEqual("Some reason", context.FailureReason);
-            Assert.AreEqual("FailingCustomCheck", context.CustomCheckId);
-            Assert.AreEqual("CustomCheck", context.Category);
+            Assert.That(context.WasCalled, Is.True);
+            Assert.That(context.FailureReason, Is.EqualTo("Some reason"));
+            Assert.That(context.CustomCheckId, Is.EqualTo("FailingCustomCheck"));
+            Assert.That(context.Category, Is.EqualTo("CustomCheck"));
             Assert.That(context.ReportedAt, Is.EqualTo(DateTime.UtcNow).Within(TimeSpan.FromMinutes(3.0)));
         }
 
diff --git a/src/NServiceBus.CustomChecks.AcceptanceTests/When_registering_custom_check_which_fails_periodically.cs b/src/NServiceBus.CustomChecks.AcceptanceTests/When_registering_custom_check_which_fails_periodically.cs
index d51b459..bc739c9 100644
--- a/src/NServiceBus.CustomChecks.AcceptanceTests/When_registering_custom_check_which_fails_periodically.cs
+++ b/src/NServiceBus.CustomChecks.AcceptanceTests/When_registering_custom_check_which_fails_periodically.cs
@@ -22,9 +22,9 @@ public async Task Should_send_result_to_service_control()
                 .Done(c => c.Times >= 2)
                 .Run();
 
-            Assert.AreEqual("Some reason", context.FailureReason);
-            Assert.AreEqual("FailingCustomCheck", context.CustomCheckId);
-            Assert.AreEqual("CustomCheck", context.Category);
+            Assert.That(context.FailureReason, Is.EqualTo("Some reason"));
+            Assert.That(context.CustomCheckId, Is.EqualTo("FailingCustomCheck"));
+            Assert.That(context.Category, Is.EqualTo("CustomCheck"));
             Assert.That(context.ReportedAt, Is.EqualTo(DateTime.UtcNow).Within(TimeSpan.FromMinutes(3.0)));
         }
 
diff --git a/src/NServiceBus.CustomChecks.AcceptanceTests/When_registering_custom_check_which_succeeds.cs b/src/NServiceBus.CustomChecks.AcceptanceTests/When_registering_custom_check_which_succeeds.cs
index 6311bf1..e066e2f 100644
--- a/src/NServiceBus.CustomChecks.AcceptanceTests/When_registering_custom_check_which_succeeds.cs
+++ b/src/NServiceBus.CustomChecks.AcceptanceTests/When_registering_custom_check_which_succeeds.cs
@@ -23,12 +23,12 @@ public async Task Should_send_result_to_service_control()
                 .Done(c => c.WasCalled)
                 .Run();
 
-            Assert.True(context.WasCalled);
-            Assert.Null(context.FailureReason);
-            Assert.AreEqual("SuccessfulCustomCheck", context.CustomCheckId);
-            Assert.AreEqual("CustomCheck", context.Category);
+            Assert.That(context.WasCalled, Is.True);
+            Assert.That(context.FailureReason, Is.Null);
+            Assert.That(context.CustomCheckId, Is.EqualTo("SuccessfulCustomCheck"));
+            Assert.That(context.Category, Is.EqualTo("CustomCheck"));
             Assert.That(context.ReportedAt, Is.EqualTo(DateTime.UtcNow).Within(TimeSpan.FromMinutes(3.0)));
-            Assert.True(context.Headers.ContainsKey(Headers.ReplyToAddress));
+            Assert.That(context.Headers.ContainsKey(Headers.ReplyToAddress), Is.True);
         }
 
         class Context : ScenarioContext
diff --git a/src/NServiceBus.CustomChecks.AcceptanceTests/When_registering_custom_check_which_succeeds_periodically.cs b/src/NServiceBus.CustomChecks.AcceptanceTests/When_registering_custom_check_which_succeeds_periodically.cs
index 66546ec..afb5a5f 100644
--- a/src/NServiceBus.CustomChecks.AcceptanceTests/When_registering_custom_check_which_succeeds_periodically.cs
+++ b/src/NServiceBus.CustomChecks.AcceptanceTests/When_registering_custom_check_which_succeeds_periodically.cs
@@ -22,9 +22,9 @@ public async Task Should_send_result_to_service_control()
                 .Done(c => c.Times >= 2)
                 .Run();
 
-            Assert.Null(context.FailureReason);
-            Assert.AreEqual("SuccessfulCustomCheck", context.CustomCheckId);
-            Assert.AreEqual("CustomCheck", context.Category);
+            Assert.That(context.FailureReason, Is.Null);
+            Assert.That(context.CustomCheckId, Is.EqualTo("SuccessfulCustomCheck"));
+            Assert.That(context.Category, Is.EqualTo("CustomCheck"));
             Assert.That(context.ReportedAt, Is.EqualTo(DateTime.UtcNow).Within(TimeSpan.FromMinutes(3.0)));
         }
 
diff --git a/src/NServiceBus.CustomChecks.AcceptanceTests/When_setting_explicit_ttl.cs b/src/NServiceBus.CustomChecks.AcceptanceTests/When_setting_explicit_ttl.cs
index d92adf3..7f0bdee 100644
--- a/src/NServiceBus.CustomChecks.AcceptanceTests/When_setting_explicit_ttl.cs
+++ b/src/NServiceBus.CustomChecks.AcceptanceTests/When_setting_explicit_ttl.cs
@@ -26,7 +26,7 @@ public async Task Should_use_it_for_check_messages()
             var message = context.Queue.Dequeue();
 
             var constraint = message.UnicastTransportOperations.First().Properties.DiscardIfNotReceivedBefore;
-            Assert.AreEqual(TimeSpan.FromSeconds(6), constraint.MaxTime);
+            Assert.That(constraint.MaxTime, Is.EqualTo(TimeSpan.FromSeconds(6)));
         }
 
         class Context : ScenarioContext
diff --git a/src/NServiceBus.CustomChecks.AcceptanceTests/When_using_one_time_check.cs b/src/NServiceBus.CustomChecks.AcceptanceTests/When_using_one_time_check.cs
index eea2522..fabcb50 100644
--- a/src/NServiceBus.CustomChecks.AcceptanceTests/When_using_one_time_check.cs
+++ b/src/NServiceBus.CustomChecks.AcceptanceTests/When_using_one_time_check.cs
@@ -26,7 +26,7 @@ public async Task Should_use_infinite_ttl_even_when_explicitly_configured()
             var message = context.Queue.Dequeue();
 
             var constraint = message.UnicastTransportOperations.First().Properties.DiscardIfNotReceivedBefore;
-            Assert.AreEqual(TimeSpan.MaxValue, constraint.MaxTime);
+            Assert.That(constraint.MaxTime, Is.EqualTo(TimeSpan.MaxValue));
         }
 
         class Context : ScenarioContext
diff --git a/src/NServiceBus.CustomChecks.AcceptanceTests/When_using_send_only_endpoint.cs b/src/NServiceBus.CustomChecks.AcceptanceTests/When_using_send_only_endpoint.cs
index 71f85dc..cc3de98 100644
--- a/src/NServiceBus.CustomChecks.AcceptanceTests/When_using_send_only_endpoint.cs
+++ b/src/NServiceBus.CustomChecks.AcceptanceTests/When_using_send_only_endpoint.cs
@@ -23,12 +23,12 @@ public async Task Should_not_include_reply_to_header()
                 .Done(c => c.CustomCheckResult != null)
                 .Run();
 
-            Assert.AreEqual(AcceptanceTesting.Customization.Conventions.EndpointNamingConvention(typeof(CustomCheckEndpoint)), testContext.CustomCheckResult.EndpointName);
-            Assert.AreEqual(false, testContext.CustomCheckResult.HasFailed);
-            Assert.AreEqual("CustomCheckInSendOnlyEndpoint", testContext.CustomCheckResult.CustomCheckId);
+            Assert.That(testContext.CustomCheckResult.EndpointName, Is.EqualTo(AcceptanceTesting.Customization.Conventions.EndpointNamingConvention(typeof(CustomCheckEndpoint))));
+            Assert.That(testContext.CustomCheckResult.HasFailed, Is.False);
+            Assert.That(testContext.CustomCheckResult.CustomCheckId, Is.EqualTo("CustomCheckInSendOnlyEndpoint"));
 
-            Assert.AreEqual(typeof(ReportCustomCheckResult).FullName, testContext.CustomCheckResultHeaders[Headers.EnclosedMessageTypes]);
-            Assert.IsFalse(testContext.CustomCheckResultHeaders.ContainsKey(Headers.ReplyToAddress));
+            Assert.That(testContext.CustomCheckResultHeaders[Headers.EnclosedMessageTypes], Is.EqualTo(typeof(ReportCustomCheckResult).FullName));
+            Assert.That(testContext.CustomCheckResultHeaders.ContainsKey(Headers.ReplyToAddress), Is.False);
         }
 
         class Context : ScenarioContext
diff --git a/src/NServiceBus.CustomChecks.Tests/NServiceBus.CustomChecks.Tests.csproj b/src/NServiceBus.CustomChecks.Tests/NServiceBus.CustomChecks.Tests.csproj
index 07db3f0..e3ef6fb 100644
--- a/src/NServiceBus.CustomChecks.Tests/NServiceBus.CustomChecks.Tests.csproj
+++ b/src/NServiceBus.CustomChecks.Tests/NServiceBus.CustomChecks.Tests.csproj
@@ -13,8 +13,8 @@
   <ItemGroup>
     <PackageReference Include="GitHubActionsTestLogger" Version="2.4.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
-    <PackageReference Include="NUnit" Version="3.14.0" />
-    <PackageReference Include="NUnit3TestAdapter" Version="4.6.0" />
+    <PackageReference Include="NUnit" Version="4.4.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="6.1.0" />
     <PackageReference Include="Particular.Approvals" Version="2.0.0" />
     <PackageReference Include="PublicApiGenerator" Version="11.1.0" />
   </ItemGroup>
diff --git a/src/NServiceBus.CustomChecks/NServiceBus.CustomChecks.csproj b/src/NServiceBus.CustomChecks/NServiceBus.CustomChecks.csproj
index c464179..ba1b920 100644
--- a/src/NServiceBus.CustomChecks/NServiceBus.CustomChecks.csproj
+++ b/src/NServiceBus.CustomChecks/NServiceBus.CustomChecks.csproj
@@ -11,7 +11,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="NServiceBus" Version="9.2.8" />
+    <PackageReference Include="NServiceBus" Version="9.2.11" />
   </ItemGroup>
 
   <ItemGroup>