China’s strict limits on how long minors can play online video games just got stricter. Chinese children and teenagers are banned from online gaming on school days, and limited to one hour a day on weekend and holiday evenings under government rules issued Monday.

The rules released by the National Press and Publication Administration tightened restrictions from 2019 aimed at what the government said was a growing scourge of online game addiction among school children. Under the old rules, players younger than 18 were limited to no more than 90 minutes of gaming on weekdays and three hours a day on weekend.

Parents had complained that was too generous and had been laxly enforced, the administration said. The new rule sets the permitted gameplay hour to 8 to 9 p.m. on Fridays, Saturdays and Sundays. The government said it would step up inspections to ensure that gaming companies were enforcing the restrictions.