diff --git a/src/Ombi.Core.Tests/Ombi.Core.Tests.csproj b/src/Ombi.Core.Tests/Ombi.Core.Tests.csproj
index e748264b4..c86ed0c94 100644
--- a/src/Ombi.Core.Tests/Ombi.Core.Tests.csproj
+++ b/src/Ombi.Core.Tests/Ombi.Core.Tests.csproj
@@ -8,6 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="AutoFixture" Version="4.11.0" />
+    <PackageReference Include="Microsoft.Bcl.AsyncInterfaces" Version="5.0.0" />
     <PackageReference Include="Moq" Version="4.14.1" />
     <PackageReference Include="Nunit" Version="3.12.0" />
     <PackageReference Include="NUnit.ConsoleRunner" Version="3.11.1" />