MDot 4.0.1 library compilation warning in mDotEvent.h

I see this warning when compiling in mDotEvent.h in mdot 4.0.1 library and was wondering if this needs to be fixed as the read_ms() is deprecated in mbed os 6.1.0 or is it okay to ignore this warning?

[Warning] mDotEvent.h@279,64: ‘int mbed::TimerBase::read_ms() const’ is deprecated: Use the Chrono-based elapsed_time method. If integer milliseconds are needed, you can use duration_cast<milliseconds>(elapsed_time()).count() [since mbed-os-6.0.0] [-Wdeprecated-declarations]

Thanks,
Ajay