More than one in four employers, 27%, are hiring employees with master’s degrees for positions that had been primarily held by those with four-year degrees in the past, according to a CareerBuilder survey released today. Additionally 37% are hiring employees with college degrees for positions that had been primarily held by those with high school degrees.

The survey found 32% of employers have increased their educational requirements over the past five years.

According to the survey, of the employers that have increased their education requirements in the past five years, most have done so for middle-skill jobs:

• Entry-level or low-skill: 46%
• Middle-skill: 61%
• High-skill: 43%

When asked why they are hiring more employees with college degrees for positions that had been primarily for those with high school diplomas in the past, 60% of the employers said skills for those positions have evolved, requiring higher educated labor, and 56% reported they are able to get college-educated labor for those positions because of the tight job market.

The online survey was conducted US by Harris Poll on behalf of CareerBuilder among 2,338 hiring and human resource managers between Nov. 4 and Dec. 1, 2015.