WASHINGTON (AP) — The go-broke dates for Medicare and Social Security have been pushed back as an improving economy has contributed to changed projected depletion dates, according to the annual Social Security and Medicare trustees report Monday.

Still, officials warn that policy changes are needed lest the programs become unable to pay full benefits to retiring Americans.

Medicare’s go-broke date for its hospital insurance trust fund was pushed back five years to 2036 in the latest report, thanks in part to higher payroll tax income and lower-than-projected expenses from last year. Medicare is the federal government’s health insurance program that covers people age 65 and older and those with severe disabilities or illnesses. It covered more than 66 million people last year, with most being 65 and older.

Once the fund’s reserves become depleted, Medicare would be able to cover only 89% of costs for patients’ hospital visits, hospice care and nursing home stays or home health care that follow hospital visits.