diff --git a/src/System.CommandLine.Extensions.SourceGenerators/System.CommandLine.Extensions.SourceGenerators.csproj b/src/System.CommandLine.Extensions.SourceGenerators/System.CommandLine.Extensions.SourceGenerators.csproj
index f18a2a6..d82afc2 100644
--- a/src/System.CommandLine.Extensions.SourceGenerators/System.CommandLine.Extensions.SourceGenerators.csproj
+++ b/src/System.CommandLine.Extensions.SourceGenerators/System.CommandLine.Extensions.SourceGenerators.csproj
@@ -1,18 +1,19 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFramework>netstandard2.0</TargetFramework>
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
         <LangVersion>latest</LangVersion>
+        <TargetFrameworks>netstandard2.0</TargetFrameworks>
+        <EnforceExtendedAnalyzerRules>true</EnforceExtendedAnalyzerRules>
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.3">
+        <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.4">
             <PrivateAssets>all</PrivateAssets>
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
         </PackageReference>
-        <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.4.0" />
+        <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.9.2" />
     </ItemGroup>
     
 </Project>
diff --git a/src/System.CommandLine.Extensions/System.CommandLine.Extensions.csproj b/src/System.CommandLine.Extensions/System.CommandLine.Extensions.csproj
index e2aeffe..2da30ba 100644
--- a/src/System.CommandLine.Extensions/System.CommandLine.Extensions.csproj
+++ b/src/System.CommandLine.Extensions/System.CommandLine.Extensions.csproj
@@ -1,11 +1,10 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFramework>netstandard2.1</TargetFramework>
         <PackageVersion>2.0.0-beta4.22272.1</PackageVersion>
         <Authors>Matthias Friedrich</Authors>
         <Description>A slim command configuration and execution layer similar to Microsoft.Extensions.CommandlineUtils.</Description>
-        <Copyright>2020 - 2022 by Matthias Friedrich</Copyright>
+        <Copyright>2020 - 2024 by Matthias Friedrich</Copyright>
         <RepositoryUrl>https://github.com/matzefriedrich/command-line-api-extensions</RepositoryUrl>
         <RepositoryType>git</RepositoryType>
         <PackageTags>CLI</PackageTags>
@@ -14,6 +13,7 @@
         <PackageReadmeFile>README.md</PackageReadmeFile>
         <AssemblyVersion>2.0.0.0</AssemblyVersion>
         <FileVersion>2.0.0.0</FileVersion>
+        <TargetFrameworks>net8.0</TargetFrameworks>
     </PropertyGroup>
 
     <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
@@ -42,9 +42,9 @@
     </ItemGroup>
 
     <ItemGroup>
-      <None Update="docs\README.md">
+      <None Include="docs/README.md">
         <Pack>True</Pack>
-        <PackagePath>\</PackagePath>
+        <PackagePath>/</PackagePath>
       </None>
     </ItemGroup>
 
diff --git a/src/System.CommandLine.Extensions/docs/README.md b/src/System.CommandLine.Extensions/docs/README.md
index 206086c..edd46c4 100644
--- a/src/System.CommandLine.Extensions/docs/README.md
+++ b/src/System.CommandLine.Extensions/docs/README.md
@@ -5,7 +5,7 @@ A slim command configuration and execution layer similar to `Microsoft.Extension
 ````csharp
 private static int Main(string[] args)
 {
-    var app = new CommandlineApplication();
+    var app = new CommandLineApplication();
 
     app.Command("greeting", "Greets the specified person.", greeting =>
     {
diff --git a/src/demo/demo.csproj b/src/demo/demo.csproj
index 60e32a0..7b23aec 100644
--- a/src/demo/demo.csproj
+++ b/src/demo/demo.csproj
@@ -2,7 +2,8 @@
 
     <PropertyGroup>
         <OutputType>Exe</OutputType>
-        <TargetFramework>netcoreapp3.1</TargetFramework>
+        <TargetFramework>net8.0</TargetFramework>
+        <Nullable>enable</Nullable>
     </PropertyGroup>
 
     <ItemGroup>