diff --git a/src/Tests/PureQL.CSharp.Model.Serialization.Tests/PureQL.CSharp.Model.Serialization.Tests.csproj b/src/Tests/PureQL.CSharp.Model.Serialization.Tests/PureQL.CSharp.Model.Serialization.Tests.csproj
index 911e78a..f5e4569 100644
--- a/src/Tests/PureQL.CSharp.Model.Serialization.Tests/PureQL.CSharp.Model.Serialization.Tests.csproj
+++ b/src/Tests/PureQL.CSharp.Model.Serialization.Tests/PureQL.CSharp.Model.Serialization.Tests.csproj
@@ -8,7 +8,7 @@
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-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.4.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.5.1" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5">
       <PrivateAssets>all</PrivateAssets>