This is not a Bug, how do I resolve version conflicts in dependent libraries?

[coinsoundsbetter]

When I used Google.ProtoBuf + Arch in a Unity project, ProtoBuf pilerServices relies on System.Runtime.CompilerServices.Unsafe 4.0; The Arch is dependent on the System.Runtime.CompilerServices.Unsafe 6.0; The error that appears is: Google.Protobuf references strong named System.Runtime.CompilerServices.Unsafe Assembly references: 4.0.4.1 Found in project: 6.0.0.0. Does anyone know how to make them compatible?