diff --git a/src/TestabilityKata.Tests/ProgramTest.cs b/src/TestabilityKata.Tests/ProgramTest.cs
index 322104b..d4a3b19 100644
--- a/src/TestabilityKata.Tests/ProgramTest.cs
+++ b/src/TestabilityKata.Tests/ProgramTest.cs
@@ -1,6 +1,7 @@
 using Autofac;
 using FluffySpoon.Testing.Autofake;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
+using NSubstitute;
 
 namespace TestabilityKata.Tests
 {
@@ -10,8 +11,23 @@ public class ProgramTest
         [TestMethod]
         public void ProgramSendsEmailWhenStartingUp()
         {
-            //problem: we certainly don't want to send e-mails out
-            Program.Main(new string[0]);
+            var fakeMailSender = Substitute.For<IMailSender>();
+            var fakeLogger = Substitute.For<ILogger>();
+
+            var program = new Program(
+                fakeLogger,
+                fakeMailSender);
+
+            program.Run();
+
+            //we here make sure that SendMail was called
+            //with the mail body "Program has started." and
+            //any e-mail address (since that is not important for this test)
+            fakeMailSender
+                .Received()
+                .SendMail(
+                    Arg.Any<string>(),
+                    "Program has started.");
         }
         
         [TestMethod]
diff --git a/src/TestabilityKata.Tests/TestabilityKata.Tests.csproj b/src/TestabilityKata.Tests/TestabilityKata.Tests.csproj
index f8c14f3..14ce7f0 100644
--- a/src/TestabilityKata.Tests/TestabilityKata.Tests.csproj
+++ b/src/TestabilityKata.Tests/TestabilityKata.Tests.csproj
@@ -1,17 +1,17 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
 
     <IsPackable>false</IsPackable>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="FluffySpoon.Testing.Autofake.Autofac" Version="1.0.5" />
-    <PackageReference Include="FluffySpoon.Testing.Autofake.NSubstitute" Version="1.0.5" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.3.0-preview-20170628-02" />
-    <PackageReference Include="MSTest.TestAdapter" Version="1.1.18" />
-    <PackageReference Include="MSTest.TestFramework" Version="1.1.18" />
+    <PackageReference Include="FluffySpoon.Testing.Autofake.Autofac" Version="1.34.0" />
+    <PackageReference Include="FluffySpoon.Testing.Autofake.NSubstitute" Version="1.34.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.2.0" />
+    <PackageReference Include="MSTest.TestAdapter" Version="2.2.10" />
+    <PackageReference Include="MSTest.TestFramework" Version="2.2.10" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/TestabilityKata/TestabilityKata.csproj b/src/TestabilityKata/TestabilityKata.csproj
index ce1697a..41f1d5a 100644
--- a/src/TestabilityKata/TestabilityKata.csproj
+++ b/src/TestabilityKata/TestabilityKata.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
   </PropertyGroup>
 
 </Project>