diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 2d54e08..64ee2dd 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        autofac: ['lowestSupported', '6.0.0', '7.1.0']
+        autofac: ['lowestSupported', '6.0.0', '7.1.0', '8.2.0']
     steps:
     - uses: actions/checkout@v2
     - uses: actions/setup-dotnet@v1
diff --git a/CompositionRoot/CompositionRoot.csproj b/CompositionRoot/CompositionRoot.csproj
index e54e7ee..998f93a 100644
--- a/CompositionRoot/CompositionRoot.csproj
+++ b/CompositionRoot/CompositionRoot.csproj
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk; Microsoft.Build.CentralPackageVersions">
     <PropertyGroup>
-        <Version>1.2.0</Version>
+        <Version>1.2.1</Version>
         <AssemblyName>Messerli.CompositionRoot</AssemblyName>
         <RootNamespace>Messerli.CompositionRoot</RootNamespace>
     </PropertyGroup>
     <PropertyGroup>
-        <TargetFrameworks>net9.0;netstandard2.1;netstandard2.0</TargetFrameworks>
-        <LangVersion>12.0</LangVersion>
+        <TargetFrameworks>net9.0;net8.0;netstandard2.1;netstandard2.0</TargetFrameworks>
+        <LangVersion>13.0</LangVersion>
         <Nullable>enable</Nullable>
     </PropertyGroup>
     <PropertyGroup>
diff --git a/Packages.props b/Packages.props
index 2c98c7e..a1bdda2 100644
--- a/Packages.props
+++ b/Packages.props
@@ -2,8 +2,8 @@
 <Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 	<ItemGroup Label="Runtime Dependencies">
 		<PackageReference Update="Autofac" Version="$(AutofacVersion)" />
-		<PackageReference Update="Autofac" Version="[8.2.0, 9)" Condition="'$(AutofacVersion)' == '' Or '$(AutofacVersion)' == 'lowestSupported'" />
-		<PackageReference Update="System.Collections.Immutable" Version="9.0.1" />
+		<PackageReference Update="Autofac" Version="[5.1.2, 9)" Condition="'$(AutofacVersion)' == '' Or '$(AutofacVersion)' == 'lowestSupported'" />
+		<PackageReference Update="System.Collections.Immutable" Version="1.6" />
 	</ItemGroup>
 	<ItemGroup Label="Build Dependencies">
 		<PackageReference Update="Messerli.CodeStyle" Version="2.3.1" />
diff --git a/global.json b/global.json
index 55f6bab..5dfbd84 100644
--- a/global.json
+++ b/global.json
@@ -1,6 +1,6 @@
 {
     "sdk": {
-        "version": "9.0.101",
+        "version": "9.0.102",
         "rollForward": "latestFeature"
     },
     "msbuild-sdks": {