Until recently, ACME Manufacturing granted every employee on…

Until recently, ACME Manufacturing granted every employee one week of paid vacation each year. The company switched its policy, offering substantially more weeks of paid vacation to employees with high seniority (more than 5 years, in this case). The average seniority of female employees at ACME is 2.5 years and 7.75 years for male employees. Which form of discrimination is this policy at risk of creating?