Conflict between Specflow nuget dependency package and framework 4.7.2

I recently started using Tuples in one of my projects, and I got the error below when trying to compile:

'ValueTuple<T1, T2>' exists in both 'System.ValueTuple ...' and 'mscorlib ...'

System.ValueTuple is a nuget package used as a dependency for Specflow, so I can´t uninstall it. Mscorlib is part of the framework. I got away with it by deleting the reference to System.ValueTuple from the app.config file, but that´s just a hack and the error comes back sometimes. Any suggestions on how to fix this?