How to update relative's address for I-130 filing?

[Adi08]

Hi,
I had filed Family based Immigration for my brother 4 years back. Recently he has changed his residence and i want to update his address in the filed I-130. I could not find any way to do so online. With receipt number, i can update my address, but my address is not changed. Is there a way to update my brother's mailing address? Is this necessary at this point since the immigration process takes long time?

Thank you