diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a57e78e..8a77468 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -31,7 +31,9 @@ jobs:
       - name: Setup .NET SDK
         uses: actions/setup-dotnet@v4.1.0
         with:
-          dotnet-version: 8.0.x
+          dotnet-version: |
+            9.0.x
+            8.0.x
       - name: Build
         run: dotnet build src --configuration Release
       - name: Upload packages
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 57fe419..d8f18f2 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -20,7 +20,7 @@ jobs:
       - name: Setup .NET SDK
         uses: actions/setup-dotnet@v4.1.0
         with:
-          dotnet-version: 8.0.x
+          dotnet-version: 9.0.x
       - name: Build
         run: dotnet build src --configuration Release
       - name: Sign NuGet packages
diff --git a/global.json b/global.json
index 2134ed9..d5bf446 100644
--- a/global.json
+++ b/global.json
@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "8.0.400",
+    "version": "9.0.100",
     "rollForward": "latestFeature"
   }
 }
\ No newline at end of file
diff --git a/src/NServiceBus.Metrics.AcceptanceTests/NServiceBus.Metrics.AcceptanceTests.csproj b/src/NServiceBus.Metrics.AcceptanceTests/NServiceBus.Metrics.AcceptanceTests.csproj
index d076fcc..b4fb671 100644
--- a/src/NServiceBus.Metrics.AcceptanceTests/NServiceBus.Metrics.AcceptanceTests.csproj
+++ b/src/NServiceBus.Metrics.AcceptanceTests/NServiceBus.Metrics.AcceptanceTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFrameworks>net8.0;net9.0</TargetFrameworks>
     <SignAssembly>true</SignAssembly>
     <AssemblyOriginatorKeyFile>..\NServiceBusTests.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
@@ -11,7 +11,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="GitHubActionsTestLogger" Version="2.4.1"/>
+    <PackageReference Include="GitHubActionsTestLogger" Version="2.4.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="NUnit" Version="4.3.0" />
     <PackageReference Include="NUnit.Analyzers" Version="4.4.0" />
diff --git a/src/NServiceBus.Metrics.Tests/NServiceBus.Metrics.Tests.csproj b/src/NServiceBus.Metrics.Tests/NServiceBus.Metrics.Tests.csproj
index 1b1ece4..d6b80da 100644
--- a/src/NServiceBus.Metrics.Tests/NServiceBus.Metrics.Tests.csproj
+++ b/src/NServiceBus.Metrics.Tests/NServiceBus.Metrics.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFrameworks>net8.0;net9.0</TargetFrameworks>
     <SignAssembly>true</SignAssembly>
     <AssemblyOriginatorKeyFile>..\NServiceBusTests.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
@@ -11,7 +11,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="GitHubActionsTestLogger" Version="2.4.1"/>
+    <PackageReference Include="GitHubActionsTestLogger" Version="2.4.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="NUnit" Version="4.3.0" />
     <PackageReference Include="NUnit.Analyzers" Version="4.4.0" />