More than 4,000 union workers in Pennsylvania picket outside nursing homes Tuesday to protest what they said were decades old nursing regulations in need of updating.

Service Employees Union International Healthcare Pennsylvania is the state’s largest union for nurses and healthcare workers, representing nearly 45,000 nurses, professional and technical employees, direct care workers and service workers in all facets of the healthcare sector.

In February, members called on the state to update its nursing home regulations related to staffing, worker retention and working conditions. The picketing is the result of what they said was the inaction of the legislature.

The union said nursing home regulations should increase the minimum staffing requirement from 2.7 hours of care per day per resident to 4.1 hours of care per day. Workers are also looking for better union contracts, which they say would help retain nursing home staff and provide more protections for residents when nursing homes are sold or undergo a change in ownership.