The number of U.S. workers quitting their jobs in September was the highest on record.

Employers are still struggling to fill millions of open jobs — and to hold on to the workers they already have.

More than 4.4 million workers quit their jobs voluntarily in September, the Labor Department said Friday. That was up from 4.3 million in August and was the most in the two decades the government has been keeping track. Nearly a million quit their jobs in the leisure and hospitality industry alone, reflecting the steep competition for workers there as businesses recover from last year’s pandemic-induced shutdowns.

“You’re essentially seeing demand continuing to increase without an offsetting increase in talent,” said Ryan Sutton, a district director for Robert Half International, a staffing firm. “Until some new talent comes in, until we get employees who are on the sidelines back into the market, it’s very likely this is going to continue.”

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