CSS profile and FAFSA household size doesn't match

On the FAFSA, I put my household size as 4 since my sister, who’s independent, receives over 50% support from my parents. However on the CSS Profile, they specify that you can only put down dependents even if they do receive over 50% support from parents. What do I do?

How old is your sister?

@thumper1 23

So…you are saying that your parents provide more than 50% support to your sister but they do not declare her as an dependent.

Does she have a job?

Is your sister graduated and has a job? How much does she earn each year?