diff --git a/samples/MediatR.Examples.AspNetCore/MediatR.Examples.AspNetCore.csproj b/samples/MediatR.Examples.AspNetCore/MediatR.Examples.AspNetCore.csproj
index 3e777b02..bb1f464b 100644
--- a/samples/MediatR.Examples.AspNetCore/MediatR.Examples.AspNetCore.csproj
+++ b/samples/MediatR.Examples.AspNetCore/MediatR.Examples.AspNetCore.csproj
@@ -10,8 +10,8 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="MediatR.Extensions.Microsoft.DependencyInjection" Version="8.0.0" />
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="3.1.0" />
+    <PackageReference Include="MediatR.Extensions.Microsoft.DependencyInjection" Version="8.1.0" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="3.1.8" />
   </ItemGroup>
 
 </Project>
diff --git a/samples/MediatR.Examples.Autofac/MediatR.Examples.Autofac.csproj b/samples/MediatR.Examples.Autofac/MediatR.Examples.Autofac.csproj
index 50a68bfe..d5cb1372 100644
--- a/samples/MediatR.Examples.Autofac/MediatR.Examples.Autofac.csproj
+++ b/samples/MediatR.Examples.Autofac/MediatR.Examples.Autofac.csproj
@@ -10,7 +10,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Autofac" Version="4.8.1" />
+    <PackageReference Include="Autofac" Version="6.0.0" />
   </ItemGroup>
 
 </Project>
diff --git a/samples/MediatR.Examples.DryIoc/MediatR.Examples.DryIoc.csproj b/samples/MediatR.Examples.DryIoc/MediatR.Examples.DryIoc.csproj
index 375211a1..19d45bc9 100644
--- a/samples/MediatR.Examples.DryIoc/MediatR.Examples.DryIoc.csproj
+++ b/samples/MediatR.Examples.DryIoc/MediatR.Examples.DryIoc.csproj
@@ -10,7 +10,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="DryIoc" Version="4.0.0-preview-01" />
+    <PackageReference Include="DryIoc" Version="4.4.1" />
   </ItemGroup>
 
 </Project>
diff --git a/samples/MediatR.Examples.Lamar/MediatR.Examples.Lamar.csproj b/samples/MediatR.Examples.Lamar/MediatR.Examples.Lamar.csproj
index 2db0be9b..8e583243 100644
--- a/samples/MediatR.Examples.Lamar/MediatR.Examples.Lamar.csproj
+++ b/samples/MediatR.Examples.Lamar/MediatR.Examples.Lamar.csproj
@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Lamar" Version="2.0.1" />
+    <PackageReference Include="Lamar" Version="4.3.1" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/samples/MediatR.Examples.LightInject/MediatR.Examples.LightInject.csproj b/samples/MediatR.Examples.LightInject/MediatR.Examples.LightInject.csproj
index 337a30e1..1b9415df 100644
--- a/samples/MediatR.Examples.LightInject/MediatR.Examples.LightInject.csproj
+++ b/samples/MediatR.Examples.LightInject/MediatR.Examples.LightInject.csproj
@@ -10,7 +10,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="LightInject" Version="5.3.0" />
+    <PackageReference Include="LightInject" Version="6.3.5" />
   </ItemGroup>
 
 </Project>
diff --git a/samples/MediatR.Examples.PublishStrategies/MediatR.Examples.PublishStrategies.csproj b/samples/MediatR.Examples.PublishStrategies/MediatR.Examples.PublishStrategies.csproj
index 8115a0f2..01f20c23 100644
--- a/samples/MediatR.Examples.PublishStrategies/MediatR.Examples.PublishStrategies.csproj
+++ b/samples/MediatR.Examples.PublishStrategies/MediatR.Examples.PublishStrategies.csproj
@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="2.2.0" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="3.1.8" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/samples/MediatR.Examples.SimpleInjector/MediatR.Examples.SimpleInjector.csproj b/samples/MediatR.Examples.SimpleInjector/MediatR.Examples.SimpleInjector.csproj
index 07885791..5fe7abcb 100644
--- a/samples/MediatR.Examples.SimpleInjector/MediatR.Examples.SimpleInjector.csproj
+++ b/samples/MediatR.Examples.SimpleInjector/MediatR.Examples.SimpleInjector.csproj
@@ -10,7 +10,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="SimpleInjector" Version="4.4.2" />
+    <PackageReference Include="SimpleInjector" Version="5.0.3" />
   </ItemGroup>
 
 </Project>
diff --git a/samples/MediatR.Examples.StructureMap/MediatR.Examples.StructureMap.csproj b/samples/MediatR.Examples.StructureMap/MediatR.Examples.StructureMap.csproj
index d925b9bd..befce488 100644
--- a/samples/MediatR.Examples.StructureMap/MediatR.Examples.StructureMap.csproj
+++ b/samples/MediatR.Examples.StructureMap/MediatR.Examples.StructureMap.csproj
@@ -10,7 +10,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="structuremap" Version="4.7.0" />
+    <PackageReference Include="structuremap" Version="4.7.1" />
   </ItemGroup>
 
 </Project>
diff --git a/samples/MediatR.Examples.Unity/MediatR.Examples.Unity.csproj b/samples/MediatR.Examples.Unity/MediatR.Examples.Unity.csproj
index 76b4f0f9..0d3c51dd 100644
--- a/samples/MediatR.Examples.Unity/MediatR.Examples.Unity.csproj
+++ b/samples/MediatR.Examples.Unity/MediatR.Examples.Unity.csproj
@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Unity.Container" Version="5.8.13" />
+    <PackageReference Include="Unity.Container" Version="5.11.8" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/samples/MediatR.Examples.Unity/Program.cs b/samples/MediatR.Examples.Unity/Program.cs
index f1ad872a..d685955a 100644
--- a/samples/MediatR.Examples.Unity/Program.cs
+++ b/samples/MediatR.Examples.Unity/Program.cs
@@ -47,7 +47,7 @@ private static IMediator BuildMediator(WrappingWriter writer)
     // ReSharper disable once InconsistentNaming
     public static class IUnityContainerExtensions
     {
-        public static IUnityContainer RegisterMediator(this IUnityContainer container, LifetimeManager lifetimeManager)
+        public static IUnityContainer RegisterMediator(this IUnityContainer container, ITypeLifetimeManager lifetimeManager)
         {
             return container.RegisterType<IMediator, Mediator>(lifetimeManager)
                 .RegisterInstance<ServiceFactory>(type =>
diff --git a/samples/MediatR.Examples.Windsor/MediatR.Examples.Windsor.csproj b/samples/MediatR.Examples.Windsor/MediatR.Examples.Windsor.csproj
index 2882ba63..87085d38 100644
--- a/samples/MediatR.Examples.Windsor/MediatR.Examples.Windsor.csproj
+++ b/samples/MediatR.Examples.Windsor/MediatR.Examples.Windsor.csproj
@@ -10,7 +10,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Castle.Windsor" Version="4.1.1" />
+    <PackageReference Include="Castle.Windsor" Version="5.0.1" />
   </ItemGroup>
 
 </Project>
diff --git a/samples/MediatR.Examples/MediatR.Examples.csproj b/samples/MediatR.Examples/MediatR.Examples.csproj
index 887b8c2c..359f2a03 100644
--- a/samples/MediatR.Examples/MediatR.Examples.csproj
+++ b/samples/MediatR.Examples/MediatR.Examples.csproj
@@ -1,15 +1,15 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0</TargetFrameworks>
+    <TargetFramework>netstandard2.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
     <ProjectReference Include="..\..\src\MediatR\MediatR.csproj" />
   </ItemGroup>
 
-  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0'">
-    <PackageReference Include="Microsoft.CSharp" Version="4.5.0" />
+  <ItemGroup>
+    <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
   </ItemGroup>
 
 </Project>
diff --git a/src/MediatR/MediatR.csproj b/src/MediatR/MediatR.csproj
index 614d1b17..1c1fefc8 100644
--- a/src/MediatR/MediatR.csproj
+++ b/src/MediatR/MediatR.csproj
@@ -34,6 +34,6 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
-    <PackageReference Include="MinVer" Version="2.3.0" PrivateAssets="All" />
+    <PackageReference Include="MinVer" Version="2.3.1" PrivateAssets="All" />
   </ItemGroup>
 </Project>
diff --git a/test/MediatR.Benchmarks/DotTraceDiagnoser.cs b/test/MediatR.Benchmarks/DotTraceDiagnoser.cs
index 184d11cc..38d66647 100644
--- a/test/MediatR.Benchmarks/DotTraceDiagnoser.cs
+++ b/test/MediatR.Benchmarks/DotTraceDiagnoser.cs
@@ -20,7 +20,7 @@ internal sealed class DotTraceDiagnoserAttribute : Attribute, IConfigSource
         public DotTraceDiagnoserAttribute()
         {
             var manualConfig = ManualConfig.CreateEmpty();
-            manualConfig.Add(new DotTraceDiagnoser());
+            manualConfig.AddDiagnoser(new DotTraceDiagnoser());
             Config = manualConfig;
         }
 
diff --git a/test/MediatR.Benchmarks/MediatR.Benchmarks.csproj b/test/MediatR.Benchmarks/MediatR.Benchmarks.csproj
index 20885462..fba73ea1 100644
--- a/test/MediatR.Benchmarks/MediatR.Benchmarks.csproj
+++ b/test/MediatR.Benchmarks/MediatR.Benchmarks.csproj
@@ -2,6 +2,8 @@
   <PropertyGroup>
     <TargetFramework>netcoreapp3.0</TargetFramework>
     <OutputType>Exe</OutputType>
+    <!-- BenchmarkDotNet 0.12.1 has an issue and doesn't support latest value. To remove for the next version. -->
+    <LangVersion>7.3</LangVersion>
   </PropertyGroup>
   <PropertyGroup>
     <PlatformTarget>AnyCPU</PlatformTarget>
@@ -12,10 +14,10 @@
     <Configuration>Release</Configuration>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="BenchmarkDotNet" Version="0.11.5" />
-    <PackageReference Include="BenchmarkDotNet.Diagnostics.Windows" Version="0.11.5" />
-    <PackageReference Include="MediatR.Extensions.Microsoft.DependencyInjection" Version="8.0.0" />
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="3.1.0" />
+    <PackageReference Include="BenchmarkDotNet" Version="0.12.1" />
+    <PackageReference Include="BenchmarkDotNet.Diagnostics.Windows" Version="0.12.1" />
+    <PackageReference Include="MediatR.Extensions.Microsoft.DependencyInjection" Version="8.1.0" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="3.1.8" />
   </ItemGroup>
   <ItemGroup>
       <ProjectReference Include="..\..\samples\MediatR.Examples\MediatR.Examples.csproj" />
diff --git a/test/MediatR.Tests/MediatR.Tests.csproj b/test/MediatR.Tests/MediatR.Tests.csproj
index 1fecb5fc..cb2ee1cd 100644
--- a/test/MediatR.Tests/MediatR.Tests.csproj
+++ b/test/MediatR.Tests/MediatR.Tests.csproj
@@ -10,11 +10,11 @@
 
   <ItemGroup>
     <PackageReference Include="xunit" Version="2.4.1" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.9.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.7.1" />
     <PackageReference Include="Shouldly" Version="3.0.2" />
-    <PackageReference Include="structuremap" Version="4.7.0" />
-    <PackageReference Include="System.Reflection.TypeExtensions" Version="4.5.1" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1">
+    <PackageReference Include="structuremap" Version="4.7.1" />
+    <PackageReference Include="System.Reflection.TypeExtensions" Version="4.7.0" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>