Harriet Tubman to Replace Andrew Jackson on the Face of the $20 Bill

Treasury Dept. spokesman confirmed the change.

"We are putting a woman on the 20, the 10, and the 5 and we are going to move as quickly as we can get all of these bills out there," Lew said in an interview with ABC News.

The Obama administration had earlier announced plans to put a woman on the $10 bill, but the renewed interest in Hamilton, the nation's first treasury secretary, pushed the government to abandon that idea and instead target the $20 bill for a redesign.

"This is I think an outcome that Hamilton supporters can be pleased with," Lew said.

But not everyone is pleased with Lew’s decision.

A number of high-profile women today penned an open letter to the secretary asking him to select a woman for the $10 note because a redesign of the $20 bill will take longer to complete, possibly up to 10 years.

They also argued that the interim plan to have a woman included on the back of the $10 bill is more an insult than a compromise.

"Could there be a better metaphor for the second-class status that continues to limit our girls?" the letter reads.

Lew defended the decision, pointing out that more images of women will now be shown on bills than earlier planned.