diff --git a/InterfaceStubGenerator.Roslyn40/InterfaceStubGenerator.Roslyn40.csproj b/InterfaceStubGenerator.Roslyn40/InterfaceStubGenerator.Roslyn40.csproj
index 4a8cded8d..ff5bcf9d7 100644
--- a/InterfaceStubGenerator.Roslyn40/InterfaceStubGenerator.Roslyn40.csproj
+++ b/InterfaceStubGenerator.Roslyn40/InterfaceStubGenerator.Roslyn40.csproj
@@ -13,7 +13,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.0.0-2.final" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.0.1" PrivateAssets="all" />
   </ItemGroup>
 
   <Target Name="SetBuildVer" AfterTargets="GetBuildVersion" BeforeTargets="SetCloudBuildVersionVars;SetCloudBuildNumberWithVersion">
diff --git a/NuGet.config b/NuGet.config
index f7d0724b7..fad809145 100644
--- a/NuGet.config
+++ b/NuGet.config
@@ -1,8 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
   <packageSources>
-    <!-- Coverlet nightly build feed -->
-    <add key="coverletNightly" value="https://www.myget.org/F/coverlet-dev/api/v3/index.json" /> 
     <add key="dotnet-tools" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-tools/nuget/v3/index.json" />
     <add key="nuget" value="https://api.nuget.org/v3/index.json" /> 
   </packageSources>
diff --git a/Refit.HttpClientFactory/Refit.HttpClientFactory.csproj b/Refit.HttpClientFactory/Refit.HttpClientFactory.csproj
index 7b536e22d..49a73c3f2 100644
--- a/Refit.HttpClientFactory/Refit.HttpClientFactory.csproj
+++ b/Refit.HttpClientFactory/Refit.HttpClientFactory.csproj
@@ -3,13 +3,17 @@
   <PropertyGroup>
     <Product>Refit HTTP Client Factory Extensions</Product>
     <Description>Refit HTTP Client Factory Extensions</Description>
-    <TargetFrameworks>net5.0;netcoreapp3.1;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net6.0;net5.0;netcoreapp3.1;netstandard2.0</TargetFrameworks>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
     <ProjectReference Include="..\Refit\Refit.csproj" PrivateAssets="Analyzers" />
-    <PackageReference Include="Microsoft.Extensions.Http" Version="5.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Http" Version="6.0.0" />
+  </ItemGroup>
+
+  <ItemGroup Condition="'$(TargetFramework)' == 'net5.0'">
+    <PackageReference Update="Microsoft.Extensions.Http" Version="5.0.0" />
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'netcoreapp3.1'">
diff --git a/Refit.Newtonsoft.Json/Refit.Newtonsoft.Json.csproj b/Refit.Newtonsoft.Json/Refit.Newtonsoft.Json.csproj
index f0fca8957..947da3c22 100644
--- a/Refit.Newtonsoft.Json/Refit.Newtonsoft.Json.csproj
+++ b/Refit.Newtonsoft.Json/Refit.Newtonsoft.Json.csproj
@@ -3,7 +3,7 @@
   <PropertyGroup>
     <Product>Refit Serializer for Newtonsoft.Json ($(TargetFramework))</Product>
     <Description>Refit Serializers for Newtonsoft.Json</Description>
-    <TargetFrameworks>net5.0;netstandard2.0;netstandard2.1;net461</TargetFrameworks>
+    <TargetFrameworks>net6.0;net5.0;netstandard2.0;net461</TargetFrameworks>
     <GenerateDocumentationFile Condition=" '$(Configuration)' == 'Release' ">true</GenerateDocumentationFile>
     <RootNamespace>Refit</RootNamespace>
     <Nullable>enable</Nullable>
diff --git a/Refit.Tests/InterfaceStubGenerator.cs b/Refit.Tests/InterfaceStubGenerator.cs
index adfc35bfb..294cf4db9 100644
--- a/Refit.Tests/InterfaceStubGenerator.cs
+++ b/Refit.Tests/InterfaceStubGenerator.cs
@@ -32,9 +32,11 @@ static InterfaceStubGeneratorTests()
         {
 #if NET5_0
             ReferenceAssemblies = ReferenceAssemblies.Net.Net50;
+#elif NET6_0
+            ReferenceAssemblies = ReferenceAssemblies.Net.Net60;
 #else
             ReferenceAssemblies = ReferenceAssemblies.Default
-                .AddPackages(ImmutableArray.Create(new PackageIdentity("System.Text.Json", "5.0.1")));
+                .AddPackages(ImmutableArray.Create(new PackageIdentity("System.Text.Json", "6.0.1")));
 #endif
 
 #if NET461
@@ -64,7 +66,7 @@ public void GenerateInterfaceStubsSmokeTest()
             Assert.Empty(diags.Where(d => d.Severity == DiagnosticSeverity.Error));
 
             var rundriver = driver.RunGeneratorsAndUpdateCompilation(inputCompilation, out var outputCompiliation, out var diagnostics);
-            
+
             var runResult = rundriver.GetRunResult();
 
             var generated = runResult.Results[0];
@@ -858,7 +860,7 @@ public interface IBoringCrudApi<T, in TKey> where T : class
         Task<T> ReadOne(TKey key);
 
         [Put("/{key}")]
-        Task Update(TKey key, [Body]T payload);
+        Task Update(TKey key, [Body] T payload);
 
         [Delete("/{key}")]
         Task Delete(TKey key);
diff --git a/Refit.Tests/Refit.Tests.csproj b/Refit.Tests/Refit.Tests.csproj
index 8f40acb3d..8d8dd1748 100644
--- a/Refit.Tests/Refit.Tests.csproj
+++ b/Refit.Tests/Refit.Tests.csproj
@@ -1,9 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
-  <Import Project="..\Refit\targets\refit.props"/>
+  <Import Project="..\Refit\targets\refit.props" />
   
   <PropertyGroup>
-    <TargetFrameworks>net5.0;netcoreapp2.1;netcoreapp3.1;net461</TargetFrameworks>
+    <TargetFrameworks>net6.0;net5.0;netcoreapp3.1;net461</TargetFrameworks>
     <Deterministic>false</Deterministic> <!-- Some tests rely on CallerFilePath -->
   </PropertyGroup>
 
@@ -18,13 +18,12 @@
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3" />
     <PackageReference Include="System.Reactive" Version="5.0.0" />    
     <PackageReference Include="Microsoft.AspNetCore.WebUtilities" Version="2.2.0" />
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.0.0-4.21423.7" />
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.SourceGenerators.Testing.XUnit" Version="1.1.0" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.0.1" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.SourceGenerators.Testing.XUnit" Version="1.1.1-beta1.22069.1" />
     <PackageReference Include="RichardSzalay.MockHttp" Version="6.0.0" />
     <ProjectReference Include="..\Refit.HttpClientFactory\Refit.HttpClientFactory.csproj" />
     <ProjectReference Include="..\Refit.Newtonsoft.Json\Refit.Newtonsoft.Json.csproj" />
-    <ProjectReference Include="..\InterfaceStubGenerator.Roslyn38\InterfaceStubGenerator.Roslyn38.csproj"
-                            OutputItemType="Analyzer" ReferenceOutputAssembly="true" />
+    <ProjectReference Include="..\InterfaceStubGenerator.Roslyn38\InterfaceStubGenerator.Roslyn38.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="true" />
     <ProjectReference Include="..\InterfaceStubGenerator.Roslyn40\InterfaceStubGenerator.Roslyn40.csproj" />
   </ItemGroup>
 
@@ -32,5 +31,5 @@
     <Reference Include="System.Net.Http" />
   </ItemGroup>
 
-  <Import Project="..\Refit\targets\refit.targets"/>
+  <Import Project="..\Refit\targets\refit.targets" />
 </Project>
diff --git a/Refit/Refit.csproj b/Refit/Refit.csproj
index d7981364e..3e2240dc6 100644
--- a/Refit/Refit.csproj
+++ b/Refit/Refit.csproj
@@ -2,15 +2,15 @@
 
   <PropertyGroup>
     <Product>Refit ($(TargetFramework))</Product>
-    <TargetFrameworks>net5.0;netstandard2.0;netstandard2.1;net461</TargetFrameworks>
+    <TargetFrameworks>net6.0;net5.0;netstandard2.0;netstandard2.1;net461</TargetFrameworks>
     <GenerateDocumentationFile Condition=" '$(Configuration)' == 'Release' ">true</GenerateDocumentationFile>
   
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Condition="'$(TargetFramework)' != 'net5.0'" Include="System.Text.Json" Version="5.0.2" />
-    <PackageReference Include="System.Net.Http.Json" Version="5.0.0" />
+    <PackageReference Condition="'$(TargetFramework)' != 'net6.0'" Include="System.Text.Json" Version="6.0.1" />
+    <PackageReference Include="System.Net.Http.Json" Version="6.0.0" />
   </ItemGroup>
   
   <ItemGroup Condition="'$(TargetFramework)' == 'net461'">    
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 039677270..289d87b6f 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -31,11 +31,10 @@ stages:
 
     steps:
     - task: UseDotNet@2
-      displayName: Use .NET Core 5.x SDK
+      displayName: Use .NET 6.x SDK
       inputs:
         version: 6.x
         performMultiLevelLookup: true
-        includePreviewVersions: true
 
     - task: UseDotNet@2
       displayName: Use .NET Core 5.x Runtime