Dress Pants Crotch Alteration

Hi I'm new to this reddit.

I have a pair of dress pants for a concert on Tuesday and didn't think to actually try them on sooner. They are supposed to be high wasted, but hit too low on my waist. Is their a way to make the crotch lower so that the waistband hits higher? Is it as simple as following the existing hem and cutting it lower? I have access to a sewing machine and surger. I'd really love to not have to find another pair 🙃

Thanks in advance.