You should do a balance increase. So if you want to raise your cals by 200 calories a day. Balance that out to equal portions. However, this is taking into count that you are doing a basic bulk diet of 40/40/20. If your ratios are different then accomodate to what you are bulking at.
My point being, don't just inscrease your Protein increase your Protein, Carbs and Fats.