diff --git a/ArchUnitNET/ArchUnitNET.csproj b/ArchUnitNET/ArchUnitNET.csproj
index 0917fdcbc..c800c2a19 100644
--- a/ArchUnitNET/ArchUnitNET.csproj
+++ b/ArchUnitNET/ArchUnitNET.csproj
@@ -20,6 +20,7 @@
         <PackageReference Include="CycleDetection" Version="2.0.0" />
         <PackageReference Include="JetBrains.Annotations" Version="2020.3.0" />
         <PackageReference Include="Mono.Cecil" Version="0.11.3" />
+        <PackageReference Include="System.ValueTuple" Version="4.5.0" />
     </ItemGroup>
     
     <ItemGroup>