diff --git a/.github/workflows/build-and-test.yaml b/.github/workflows/build-and-test.yaml
index 1b48c06..31401b8 100644
--- a/.github/workflows/build-and-test.yaml
+++ b/.github/workflows/build-and-test.yaml
@@ -65,7 +65,7 @@ jobs:
       - name: Setup .NET
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: 8.0.x
+          dotnet-version: 9.0.x
 
       - name: Restore dependencies
         run: dotnet restore
@@ -119,7 +119,7 @@ jobs:
       - name: Setup .NET
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: 8.0.x
+          dotnet-version: 9.0.x
 
       - name: Publish
         run: dotnet publish Stack/Stack.csproj -c Release -r ${{ matrix.runtime-id }} -p:Version=${{ needs.version.outputs.version }} -p:DebugType=None -p:DebugSymbols=false -o ${{ github.workspace }}/publish
diff --git a/src/Stack/Stack.csproj b/src/Stack/Stack.csproj
index 8ba79e0..f98583b 100644
--- a/src/Stack/Stack.csproj
+++ b/src/Stack/Stack.csproj
@@ -3,7 +3,7 @@
   <PropertyGroup>
     <OutputType>Exe</OutputType>
     <AssemblyName>stack</AssemblyName>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <PublishSingleFile>true</PublishSingleFile>
@@ -14,7 +14,7 @@
 
   <ItemGroup>
     <PackageReference Include="Humanizer.Core" Version="2.14.1" />
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.1" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="9.0.0" />
     <PackageReference Include="Octopus.Shellfish" Version="0.2.1180" />
     <PackageReference Include="Spectre.Console.Cli" Version="0.49.1" />
   </ItemGroup>