Prenups: They’re not just for celebrities anymore. In fact, more of your engaged friends may be getting them than they admit. Prenuptial agreements are more popular than ever, and millennials appear to be driving the trend: In a 2013 survey by the American Academy of Matrimonial Lawyers, 63% of divorce attorneys say they’ve seen an uptick in prenups.

“Historically, most people that were getting prenups were people with substantial wealth or family money, or people who were getting married for the second time and wanted to make sure their assets were protected for the kids,” Regina DeMeo, a Washington, D.C., divorce attorney, told Mic.