diff --git a/.vsconfig b/.vsconfig
index a991ed17..8114a325 100644
--- a/.vsconfig
+++ b/.vsconfig
@@ -3,7 +3,7 @@
   "components": [
     "Microsoft.VisualStudio.Component.CoreEditor",
     "Microsoft.VisualStudio.Workload.CoreEditor",
-    "Microsoft.NetCore.Component.Runtime.8.0",
+    "Microsoft.NetCore.Component.Runtime.9.0",
     "Microsoft.NetCore.Component.SDK",
     "Microsoft.VisualStudio.Component.Roslyn.Compiler",
     "Microsoft.VisualStudio.Component.Roslyn.LanguageServices"
diff --git a/Directory.Packages.props b/Directory.Packages.props
index 08c0b492..3f190a09 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -6,7 +6,7 @@
   <ItemGroup>
     <PackageVersion Include="coverlet.msbuild" Version="6.0.2" />
     <PackageVersion Include="GitHubActionsTestLogger" Version="2.4.1" />
-    <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="8.0.11" />
+    <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="9.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Logging" Version="8.0.1" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
     <PackageVersion Include="NSubstitute" Version="5.3.0" />
diff --git a/README.md b/README.md
index e799c202..45654e04 100644
--- a/README.md
+++ b/README.md
@@ -85,7 +85,7 @@ This project is licensed under the [Apache 2.0](http://www.apache.org/licenses/L
 
 ## Building and Testing
 
-Compiling the library yourself requires Git and the [.NET SDK](https://www.microsoft.com/net/download/core "Download the .NET SDK") to be installed (version `8.0.100` or later).
+Compiling the library yourself requires Git and the [.NET SDK](https://www.microsoft.com/net/download/core "Download the .NET SDK") to be installed (version `9.0.100` or later).
 
 To build and test the library locally from a terminal/command-line, run one of the following set of commands:
 
diff --git a/build.ps1 b/build.ps1
index 1b75cfca..ffb7bca0 100755
--- a/build.ps1
+++ b/build.ps1
@@ -7,10 +7,6 @@ param(
     [Parameter(Mandatory = $false)][switch] $SkipTests
 )
 
-if ($null -eq $env:MSBUILDTERMINALLOGGER) {
-    $env:MSBUILDTERMINALLOGGER = "auto"
-}
-
 $ErrorActionPreference = "Stop"
 $InformationPreference = "Continue"
 $ProgressPreference = "SilentlyContinue"
diff --git a/global.json b/global.json
index b962d273..217f7c9f 100644
--- a/global.json
+++ b/global.json
@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "8.0.404",
+    "version": "9.0.100",
     "allowPrerelease": false,
     "rollForward": "latestMajor"
   }
diff --git a/src/Logging.XUnit/CompatibilitySuppressions.xml b/src/Logging.XUnit/CompatibilitySuppressions.xml
new file mode 100644
index 00000000..247ae464
--- /dev/null
+++ b/src/Logging.XUnit/CompatibilitySuppressions.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- https://learn.microsoft.com/en-us/dotnet/fundamentals/package-validation/diagnostic-ids -->
+<Suppressions xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
+  <Suppression>
+    <DiagnosticId>CP0021</DiagnosticId>
+    <Target>M:MartinCostello.Logging.XUnit.XUnitLogger.BeginScope``1(``0)``0:notnull</Target>
+    <Left>lib/netstandard2.0/MartinCostello.Logging.XUnit.dll</Left>
+    <Right>lib/netstandard2.0/MartinCostello.Logging.XUnit.dll</Right>
+    <IsBaselineSuppression>true</IsBaselineSuppression>
+  </Suppression>
+</Suppressions>
\ No newline at end of file
diff --git a/tests/Logging.XUnit.Tests/MartinCostello.Logging.XUnit.Tests.csproj b/tests/Logging.XUnit.Tests/MartinCostello.Logging.XUnit.Tests.csproj
index f3aabe15..9d7cfe66 100644
--- a/tests/Logging.XUnit.Tests/MartinCostello.Logging.XUnit.Tests.csproj
+++ b/tests/Logging.XUnit.Tests/MartinCostello.Logging.XUnit.Tests.csproj
@@ -7,7 +7,7 @@
     <PreserveCompilationContext>true</PreserveCompilationContext>
     <RootNamespace>MartinCostello.Logging.XUnit</RootNamespace>
     <Summary>$(Description)</Summary>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
   <ItemGroup>
     <Content Include="xunit.runner.json" CopyToOutputDirectory="PreserveNewest" />
diff --git a/tests/Logging.XUnit.Tests/XUnitLoggerTests.cs b/tests/Logging.XUnit.Tests/XUnitLoggerTests.cs
index dab28a5c..1e179d5a 100644
--- a/tests/Logging.XUnit.Tests/XUnitLoggerTests.cs
+++ b/tests/Logging.XUnit.Tests/XUnitLoggerTests.cs
@@ -287,7 +287,8 @@ public static void XUnitLogger_Log_Logs_Message_If_Only_Exception()
 
         string expected = string.Join(
             Environment.NewLine,
-            ["[2018-08-19 16:12:16Z] info: MyName[2]", "System.InvalidOperationException: Invalid"]);
+            "[2018-08-19 16:12:16Z] info: MyName[2]",
+            "System.InvalidOperationException: Invalid");
 
         // Act
         logger.Log(LogLevel.Information, new EventId(2), "state", exception, FormatterNull);
@@ -317,7 +318,9 @@ public static void XUnitLogger_Log_Logs_Message_If_Message_And_Exception()
 
         string expected = string.Join(
             Environment.NewLine,
-            ["[2018-08-19 16:12:16Z] warn: MyName[3]", "      Message|False|True", "System.InvalidOperationException: Invalid"]);
+            "[2018-08-19 16:12:16Z] warn: MyName[3]",
+            "      Message|False|True",
+            "System.InvalidOperationException: Invalid");
 
         // Act
         logger.Log<string?>(LogLevel.Warning, new EventId(3), null, exception, Formatter);
@@ -345,7 +348,8 @@ public static void XUnitLogger_Log_Logs_Message_If_Message_And_No_Exception()
 
         string expected = string.Join(
             Environment.NewLine,
-            ["[2018-08-19 16:12:16Z] fail: MyName[4]", "      Message|False|False"]);
+            "[2018-08-19 16:12:16Z] fail: MyName[4]",
+            "      Message|False|False");
 
         // Act
         logger.Log<string?>(LogLevel.Error, new EventId(4), null, null, Formatter);
@@ -379,7 +383,8 @@ public static void XUnitLogger_Log_Logs_Messages(LogLevel logLevel, string short
 
         string expected = string.Join(
             Environment.NewLine,
-            [$"[2018-08-19 16:12:16Z] {shortLevel}: Your Name[85]", "      Message|True|False"]);
+            $"[2018-08-19 16:12:16Z] {shortLevel}: Your Name[85]",
+            "      Message|True|False");
 
         // Act
         logger.Log(logLevel, new EventId(85), "Martin", null, Formatter);
@@ -429,7 +434,8 @@ public static void XUnitLogger_Log_Logs_Message_If_Scopes_Included_But_There_Are
 
         string expected = string.Join(
             Environment.NewLine,
-            ["[2018-08-19 16:12:16Z] info: MyName[0]", "      Message|False|False"]);
+            "[2018-08-19 16:12:16Z] info: MyName[0]",
+            "      Message|False|False");
 
         // Act
         logger.Log<string?>(LogLevel.Information, 0, null, null, Formatter);
diff --git a/tests/SampleApp/SampleApp.csproj b/tests/SampleApp/SampleApp.csproj
index fe4c341b..d1406cd9 100644
--- a/tests/SampleApp/SampleApp.csproj
+++ b/tests/SampleApp/SampleApp.csproj
@@ -2,6 +2,6 @@
   <PropertyGroup>
     <IsPackable>false</IsPackable>
     <NoWarn>$(NoWarn);CA1801;CA1822;CA1861;SA1600;SA1601</NoWarn>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
   </PropertyGroup>
 </Project>