diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 08d434c60..c1269c310 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -11,7 +11,7 @@ resources:
 variables:
   BuildConfiguration: 'Release'
   BuildPlatform: 'Any CPU'
-  PublishFramework: 'net8.0'
+  PublishFramework: 'net9.0'
   PublishProject: 'DockMvvmSample'
   PublishRuntime: ''
   Workloads: 'wasm-tools wasm-experimental'
diff --git a/build/build/_build.csproj b/build/build/_build.csproj
index 5e6ba1f18..b38834167 100644
--- a/build/build/_build.csproj
+++ b/build/build/_build.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
     <IsPackable>False</IsPackable>
     <NoWarn>CS0649;CS0169</NoWarn>
diff --git a/samples/DockMvvmSample/DockMvvmSample.csproj b/samples/DockMvvmSample/DockMvvmSample.csproj
index e6f94008a..3f135354b 100644
--- a/samples/DockMvvmSample/DockMvvmSample.csproj
+++ b/samples/DockMvvmSample/DockMvvmSample.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <OutputType>WinExe</OutputType>
     <GenerateAssemblyInfo>False</GenerateAssemblyInfo>
     <IsPackable>False</IsPackable>
diff --git a/samples/DockXamlSample/DockXamlSample.csproj b/samples/DockXamlSample/DockXamlSample.csproj
index 42c85feac..6ce04777f 100644
--- a/samples/DockXamlSample/DockXamlSample.csproj
+++ b/samples/DockXamlSample/DockXamlSample.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <OutputType>WinExe</OutputType>
     <GenerateAssemblyInfo>False</GenerateAssemblyInfo>
     <IsPackable>False</IsPackable>
diff --git a/samples/Notepad/Notepad.csproj b/samples/Notepad/Notepad.csproj
index 51cf89797..56f2a60d5 100644
--- a/samples/Notepad/Notepad.csproj
+++ b/samples/Notepad/Notepad.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <OutputType>WinExe</OutputType>
     <GenerateAssemblyInfo>False</GenerateAssemblyInfo>
     <IsPackable>False</IsPackable>
diff --git a/tests/Dock.Avalonia.UnitTests/Dock.Avalonia.UnitTests.csproj b/tests/Dock.Avalonia.UnitTests/Dock.Avalonia.UnitTests.csproj
index 422532f07..95131d803 100644
--- a/tests/Dock.Avalonia.UnitTests/Dock.Avalonia.UnitTests.csproj
+++ b/tests/Dock.Avalonia.UnitTests/Dock.Avalonia.UnitTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <OutputType>Library</OutputType>
     <IsPackable>False</IsPackable>
     <IsTestProject>True</IsTestProject>
diff --git a/tests/Dock.Model.Avalonia.UnitTests/Dock.Model.Avalonia.UnitTests.csproj b/tests/Dock.Model.Avalonia.UnitTests/Dock.Model.Avalonia.UnitTests.csproj
index 9798b8744..05e6fcde2 100644
--- a/tests/Dock.Model.Avalonia.UnitTests/Dock.Model.Avalonia.UnitTests.csproj
+++ b/tests/Dock.Model.Avalonia.UnitTests/Dock.Model.Avalonia.UnitTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <OutputType>Library</OutputType>
     <IsPackable>False</IsPackable>
     <IsTestProject>True</IsTestProject>
diff --git a/tests/Dock.Model.Mvvm.UnitTests/Dock.Model.Mvvm.UnitTests.csproj b/tests/Dock.Model.Mvvm.UnitTests/Dock.Model.Mvvm.UnitTests.csproj
index 43a49db6c..bcc68ba0b 100644
--- a/tests/Dock.Model.Mvvm.UnitTests/Dock.Model.Mvvm.UnitTests.csproj
+++ b/tests/Dock.Model.Mvvm.UnitTests/Dock.Model.Mvvm.UnitTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <OutputType>Library</OutputType>
     <IsPackable>False</IsPackable>
     <IsTestProject>True</IsTestProject>
diff --git a/tests/Dock.Model.ReactiveUI.UnitTests/Dock.Model.ReactiveUI.UnitTests.csproj b/tests/Dock.Model.ReactiveUI.UnitTests/Dock.Model.ReactiveUI.UnitTests.csproj
index f411eb177..9e3920d6d 100644
--- a/tests/Dock.Model.ReactiveUI.UnitTests/Dock.Model.ReactiveUI.UnitTests.csproj
+++ b/tests/Dock.Model.ReactiveUI.UnitTests/Dock.Model.ReactiveUI.UnitTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <OutputType>Library</OutputType>
     <IsPackable>False</IsPackable>
     <IsTestProject>True</IsTestProject>
diff --git a/tests/Dock.Model.UnitTests/Dock.Model.UnitTests.csproj b/tests/Dock.Model.UnitTests/Dock.Model.UnitTests.csproj
index d78a9cb34..6dde3e9c1 100644
--- a/tests/Dock.Model.UnitTests/Dock.Model.UnitTests.csproj
+++ b/tests/Dock.Model.UnitTests/Dock.Model.UnitTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <OutputType>Library</OutputType>
     <IsPackable>False</IsPackable>
     <IsTestProject>True</IsTestProject>