With not all currency being equal, is the phrase "My two cents" subject to change?

So, we all probably know the phrase “My two cents”, basically saying that’s my opinion/feedback. However, since this phrase uses a monetary value, is it possible that it should be subject to change based on the location and conversion of currency? This phrase probably started in the US, so in countries with lesser dollar value, should we change it? We might have to say “Well that’s my five cents”, or ”嗯，这是我的.12美分”