More than 200 United Airlines employees will be keeping their jobs, after the airline had announced they were part of a group of workers being let go for vaccine mandate non-compliance.

United previously said it would lay off nearly 600 employees who did not comply with the company's COVID-19 vaccine mandate.

But a spokesperson for the company said that in less than 48 hours, the number of employees who were being let go dropped from 593 to 320.

“That means 99.5% of United’s U.S. employees have now chosen to get vaccinated, excluding those who sought an exemption,” the spokesperson said in a statement.

The spokesperson said that the reduction was driven mainly by late vaccination card uploads.