Students at Harvard University will continue to be required to take the COVID-19 vaccine in order to register for the upcoming semester, the school has recently announced, joining 69 other schools around the country that still require the shot.

“Harvard requires all students who will be on campus to have some protection from COVID-19 through vaccination,” reads a statement posted by the school. “This may be through the initial primary series of COVID-19 vaccination or one of the most recent COVID-19 boosters.”

Students who fail to show approved documentation will be unable to sign up for classes, with the website warning that should they “fall out of compliance at any time for any of the required immunizations, registration holds will be automatically applied.”