(CNN) In the latest move in an ongoing back-and-forth over Tom Petty's estate, the late singer's daughters are suing his widow, Dana York Petty.

In a lawsuit filed Wednesday in Los Angeles Superior Court, Adria Petty and Annakim Violette asked for $5 million in damages plus attorney's fees.

The daughters, who are from Petty's first marriage to Jane Benyo, claim that that their father's wife of 16 years hasn't allowed them enough say in how the rocker's estate will be managed.

Petty, whose hits include "Free Fallin'," "I Won't Back Down," and "Learning to Fly," died at age 66 in 2017, of an accidental drug overdose, according to the Los Angeles County medical examiner's office.

The plaintiff in the suit is Tom Petty Unlimited, a limited liability corporation formed in March 2018 to manage the musician's assets after his death.

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