Mexico’s Supreme Court voted 4 to 1 on Wednesday that members of a cannabis club are allowed to grow marijuana for their personal use, a potentially significant blow to laws restricting drug use in the country.

The club members — Josefina Ricarño, Armando Santacruz, José Pablo Girault and Juan Francisco Torres Landa Ruffo — had applied for a license from Mexico’s drug regulatory office, but were denied. They appealed that denial to the Supreme Court, which ruled that the four members were allowed to grow, transport and use marijuana for recreational purposes.