diff --git a/src/ARI.Tests/ARI.Tests.csproj b/src/ARI.Tests/ARI.Tests.csproj
index 2568699..fe8b6db 100644
--- a/src/ARI.Tests/ARI.Tests.csproj
+++ b/src/ARI.Tests/ARI.Tests.csproj
@@ -58,7 +58,7 @@
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+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.4.0" />
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     <PackageReference Include="NUnit3TestAdapter" Version="6.2.0" />
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