Average long-term U.S. mortgage rates reached their highest level in more than two decades this week and are likely to climb further as the Federal Reserve has all but guaranteed more rate increases in its battle to tamp down persistent inflation.

Mortgage buyer Freddie Mac reported Thursday that the average on the key 30-year rate climbed to 6.92% from 6.66% last week. Last year at this time, the rate was 3.05%.

The average rate on 15-year, fixed-rate mortgages, popular among those looking to refinance their homes, rose to 6.09% from 5.9% last week, the first time it’s breached 6% since the housing market crash of 2008. One year ago, the 15-year rate was 2.3%.

High rates have pushed many prospective homebuyers out of the market