diff --git a/test/JsonMergePatch.Http.Tests/JsonMergePatch.Http.Tests.csproj b/test/JsonMergePatch.Http.Tests/JsonMergePatch.Http.Tests.csproj
index 9a91d3e..8432ea9 100644
--- a/test/JsonMergePatch.Http.Tests/JsonMergePatch.Http.Tests.csproj
+++ b/test/JsonMergePatch.Http.Tests/JsonMergePatch.Http.Tests.csproj
@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
     <PackageReference Include="NSubstitute" Version="5.1.0" />
     <PackageReference Include="xunit" Version="2.6.6" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.5.6">
diff --git a/test/JsonMergePatch.SourceGenerator.Abstractions.Tests/JsonMergePatch.SourceGenerator.Tests.csproj b/test/JsonMergePatch.SourceGenerator.Abstractions.Tests/JsonMergePatch.SourceGenerator.Tests.csproj
index ac6a261..736c2c8 100644
--- a/test/JsonMergePatch.SourceGenerator.Abstractions.Tests/JsonMergePatch.SourceGenerator.Tests.csproj
+++ b/test/JsonMergePatch.SourceGenerator.Abstractions.Tests/JsonMergePatch.SourceGenerator.Tests.csproj
@@ -9,7 +9,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.8.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyModel" Version="8.0.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
     <PackageReference Include="NSubstitute" Version="5.1.0" />
     <PackageReference Include="xunit" Version="2.6.6" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.5.6">
diff --git a/test/JsonMergePatch.Tests/JsonMergePatch.AspNetCore.Tests.csproj b/test/JsonMergePatch.Tests/JsonMergePatch.AspNetCore.Tests.csproj
index 9f93536..213a75b 100644
--- a/test/JsonMergePatch.Tests/JsonMergePatch.AspNetCore.Tests.csproj
+++ b/test/JsonMergePatch.Tests/JsonMergePatch.AspNetCore.Tests.csproj
@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
     <PackageReference Include="NSubstitute" Version="5.1.0" />
     <PackageReference Include="xunit" Version="2.6.6" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.5.6">