react-redux-toastr: Warning: Function components cannot be given refs. Attempts to access this ref will fail.

I’m getting a warning in my console output since upgrading my application to react v16 and react-redux-toastr to v7.4.5.

This occurs when I use toastr.confirm – it looks like it is the toastr confirmation buttons that are causing the issue.

Warning: Function components cannot be given refs. Attempts to access this ref will fail.

Check the render method of `ToastrConfirm`.
    in ReduxConfirmButton (created by ToastrConfirm)
    in div (created by ToastrConfirm)
    in div (created by ToastrConfirm)
    in div (created by ToastrConfirm)
    in ToastrConfirm (created by ReduxToastr)
    in span (created by ReduxToastr)
    in ReduxToastr (created by Connect(ReduxToastr))
    in Connect(ReduxToastr) (created by App)
    in div (created by App)
    in Provider (created by App)
    in App (created by Connect(App))
    in Connect(App)
    in AppContainer