The City of Raleigh and two city employees are now named in the lawsuit for their role in planning the parade.
A spokesperson for the city told ABC11 they cannot comment on pending or active lawsuits.
In October, the Brooks family dropped Landen Glass from the lawsuit.
Police said he lost control of his truck after his brakes failed while pulling a float, hitting and killing Hailey, who was a dancer with CC & Co. Dance Complex.
After her death, the city of Raleigh didn't allow motorized vehicles in the 2023 parade. However, Raleigh council voted in June 2024 to allow motorized vehicles in parades but with new safety regulations.