The band was supposed to perform in Hartford on September 19, but they have cancelled it for precaution, reported Aceshowbiz.
Levine, 37, and Prinsloo, 27, are about to welcome their first child any day now.
Prinsloo's due date is November 20.
"Maroon 5 have announced that their upcoming show at the XL Center in Hartford, CT this Monday, September 19th will unfortunately be canceled," the band said.
"Maroon's 5 show in Hartford was happening in conjunction with the group's Fall 2016 U.S. Tour and is being canceled due to the upcoming birth of frontman Adam Levine's baby."
Those gigs are rescheduled for February and March in 2017. "Sadly, it's par for the course with having a baby soon," Levine explained back then. "It's life, and it's beautiful, but it can be complicated, and I apologize for any inconvenience.