Religious Exemption

Hello everyone, I am having a slight issue with my university. I am graduating this summer as a Graduate student in STEM, however, my university demanded a waiver for my request at religious exemption from the Covid 19 Vaccine. Though, the requirement to be vaccinated is not until the Fall semester of 2021. Since I am graduating before Fall Semester 2021, I figured it would not matter to the school if I was vaccinated or not, as both my current courses are online.

My school has decided that I need to submit a form stating my reason for exemption under oath with signature. This is not a problem, I do not mind, however, my religious beliefs are not widely held enough for the school to consider a "reasonable case". These are deeply held beliefs and I am concerned the school will withhold my request to graduate as I am not vaccinated, before the requirement of even needing to be vaccinated.

What can I do to ensure, or find help in explaining my reasoning?

tl:dr I don't believe my school will take my religious exemption seriously as it is not a widely held belief set.