My baby cannot sleep through the night

Hi, my baby is 5+months old but still wakes up at least once during midnight to feed and can't sleep through the night. Usually sleeps around 7pm-ish and wakes up at 7am. Recently for the last few days, he wakes up twice midnight for feeding. His feed now is 130ml, every 3 hourly. I thought of increasing his feed to 150ml, every 4 hourly. Need advice on this? Any mummy can help? #pleasehelp #advicepls