In an interview with Entertainment Tonight, Parton said the workplace comedy sequel is not likely to happen.
"I don't think we're going to do the sequel," Parton speculated. "We never could get the script to where it was enough different than the first one, and that one turned out so good."
However, that doesn't mean that Parton won't join the Grace & Frankie stars on the silver screen again.
"We're thinking we might do a completely different thing together, Jane, Lily and I," Parton said. "We may do something different altogether, but I don't think we'll continue with [the sequel]."
In November, Entertainment Weekly reported that the film is no longer moving forward with production.
9 to 5 centers on three secretaries dealing with overt sexism in the workplace. The comedic film famously followed the three women as they ended up kidnapping their boss.
Read More: The 15 Best Dolly Parton Songs, Ranked
In 2018, Deadline reported that the 9 to 5 reboot would bring back the original three stars. Rashida Jones ("Angie Tribeca," "Parks and Recreation") was expected to join original co-writer Pat Resnick to bring the film up to date for this century. Jones has a few successful writing projects under her belt, including an episode of "Black Mirror," making her the perfect choice for Resnick to work with.
Women and Hollywood wrote that the film would "would focus on three young women dealing with sexism and chauvinism in the workplace, who turn to the original trio for help in navigating and getting even with the coarse male higher-ups."
The upcoming documentary Still Working 9 to 5, co-directed by Gary Lane and Camille Hardman, will focus on the film and explore issues such as sexual harassment, equal pay and the #metoo movement through new interviews with the film's stars.
In the '80s, Parton's title song for the film became a massive hit. In 2009, the singer-songwriter adapted 9 to 5 into a musical on Broadway.
Parton's new Netflix series Heartstrings is based on eight different songs from her impressive discography.
Dumplin', a Netflix original movie featuring original and reimagined Parton songs, debuted in 2018.
This article has been updated to reflect that the '9 to 5' sequel is not moving forward as planned. It was updated on Nov. 26, 2019.