diff --git a/src/SimpleFluxDotNet.Tests/SimpleFluxDotNet.Tests.csproj b/src/SimpleFluxDotNet.Tests/SimpleFluxDotNet.Tests.csproj
index ecf3467..6842c97 100644
--- a/src/SimpleFluxDotNet.Tests/SimpleFluxDotNet.Tests.csproj
+++ b/src/SimpleFluxDotNet.Tests/SimpleFluxDotNet.Tests.csproj
@@ -18,6 +18,7 @@
 		<PackageReference Include="NUnit" Version="3.14.0" />
 		<PackageReference Include="NUnit.Analyzers" Version="3.9.0" />
 		<PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
+		<PackageReference Include="System.Text.Json" Version="8.0.5" />
 	</ItemGroup>
 
 	<ItemGroup>