diff --git a/MCC_xUnit/MCC_xUnit.csproj b/MCC_xUnit/MCC_xUnit.csproj
index 60dd386..906df43 100644
--- a/MCC_xUnit/MCC_xUnit.csproj
+++ b/MCC_xUnit/MCC_xUnit.csproj
@@ -12,6 +12,7 @@
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+    <PackageReference Include="System.Runtime.CompilerServices.Unsafe" Version="4.6.0" />
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     <PackageReference Include="xunit.analyzers" Version="0.10.0" />
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