diff --git a/build/TargetFramework.props b/build/TargetFramework.props
index 6640ac4..6874302 100644
--- a/build/TargetFramework.props
+++ b/build/TargetFramework.props
@@ -1,7 +1,7 @@
 <Project>
 
   <PropertyGroup>
-    <DotNetTargetFramework>net8.0</DotNetTargetFramework>
+    <DotNetTargetFramework>net9.0</DotNetTargetFramework>
   </PropertyGroup>
 
 </Project>
diff --git a/global.json b/global.json
index d543565..ed7ea04 100644
--- a/global.json
+++ b/global.json
@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "8.0.406",
+    "version": "9.0.200",
     "allowPrerelease": false,
     "rollForward": "latestFeature"
   }
diff --git a/nukebuild/Build.csproj b/nukebuild/Build.csproj
index dc47661..62adcdc 100644
--- a/nukebuild/Build.csproj
+++ b/nukebuild/Build.csproj
@@ -22,6 +22,7 @@
 
   <ItemGroup>
     <PackageReference Include="Nuke.Common" Version="8.1.4" />
+    <PackageReference Include="System.Runtime.Serialization.Formatters" Version="9.0.2" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/Ayaka.MultiTenancy.Abstractions/Ayaka.MultiTenancy.Abstractions.csproj b/src/Ayaka.MultiTenancy.Abstractions/Ayaka.MultiTenancy.Abstractions.csproj
index 5bb5623..0ff3391 100644
--- a/src/Ayaka.MultiTenancy.Abstractions/Ayaka.MultiTenancy.Abstractions.csproj
+++ b/src/Ayaka.MultiTenancy.Abstractions/Ayaka.MultiTenancy.Abstractions.csproj
@@ -16,7 +16,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="8.0.2" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="9.0.2" />
   </ItemGroup>
 
 </Project>
diff --git a/src/Ayaka.Nuke/Ayaka.Nuke.csproj b/src/Ayaka.Nuke/Ayaka.Nuke.csproj
index 5b72341..015727f 100644
--- a/src/Ayaka.Nuke/Ayaka.Nuke.csproj
+++ b/src/Ayaka.Nuke/Ayaka.Nuke.csproj
@@ -16,6 +16,7 @@
   <ItemGroup>
     <PackageReference Include="Nuke.Common" Version="8.1.4" />
     <PackageReference Include="Octokit" Version="14.0.0" />
+    <PackageReference Include="System.Runtime.Serialization.Formatters" Version="9.0.2" />
   </ItemGroup>
 
 </Project>
diff --git a/test/Ayaka.MultiTenancy.AspNetCore.Tests/Ayaka.MultiTenancy.AspNetCore.Tests.csproj b/test/Ayaka.MultiTenancy.AspNetCore.Tests/Ayaka.MultiTenancy.AspNetCore.Tests.csproj
index 9bb3161..1c8fa16 100644
--- a/test/Ayaka.MultiTenancy.AspNetCore.Tests/Ayaka.MultiTenancy.AspNetCore.Tests.csproj
+++ b/test/Ayaka.MultiTenancy.AspNetCore.Tests/Ayaka.MultiTenancy.AspNetCore.Tests.csproj
@@ -10,7 +10,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.TestHost" Version="8.0.13" />
+    <PackageReference Include="Microsoft.AspNetCore.TestHost" Version="9.0.2" />
   </ItemGroup>
 
 </Project>
diff --git a/test/Ayaka.MultiTenancy.Tests/Ayaka.MultiTenancy.Tests.csproj b/test/Ayaka.MultiTenancy.Tests/Ayaka.MultiTenancy.Tests.csproj
index e170067..e6346f1 100644
--- a/test/Ayaka.MultiTenancy.Tests/Ayaka.MultiTenancy.Tests.csproj
+++ b/test/Ayaka.MultiTenancy.Tests/Ayaka.MultiTenancy.Tests.csproj
@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.1" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="9.0.2" />
   </ItemGroup>
 
   <ItemGroup>