diff --git a/tests/Authplane.Mcp.Tests/Authplane.Mcp.Tests.csproj b/tests/Authplane.Mcp.Tests/Authplane.Mcp.Tests.csproj
index 4c79d85..f01e5f6 100644
--- a/tests/Authplane.Mcp.Tests/Authplane.Mcp.Tests.csproj
+++ b/tests/Authplane.Mcp.Tests/Authplane.Mcp.Tests.csproj
@@ -22,7 +22,7 @@
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       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.9.0" />
     <PackageReference Include="coverlet.collector" Version="6.0.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
diff --git a/tests/Authplane.Tests/Authplane.Tests.csproj b/tests/Authplane.Tests/Authplane.Tests.csproj
index 09007a7..78a2bf4 100644
--- a/tests/Authplane.Tests/Authplane.Tests.csproj
+++ b/tests/Authplane.Tests/Authplane.Tests.csproj
@@ -14,7 +14,7 @@
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       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
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-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.9.0" />
     <PackageReference Include="coverlet.collector" Version="6.0.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>