The upcoming fifth season premiere included the Dusty Springfield song 'The Look of Love', but several critics who received advance screeners noted that the episode is set six months prior to the tune's release in 1967.
As reported by Entertainment Weekly, Weiner sent a letter out to critics following the complaints, in which he stated that the song would be changed.
In the letter, Weiner wrote: "As you know, one of the things I love best about Mad Men is the passionate response I get from members of the press. Recently a few of you have mentioned that the song 'The Look of Love', used in our season five premiere episode, was not actually released until six months after the episode takes place.
"Because of this we have replaced this song with one more suited to the time period and you, along with our audience, will hear it for the first time during our March 25th broadcast."
Weiner continued: "Although we take license for artistic purposes with the end-title music, we never want the source music to break from the time period we are trying to recreate.
"As someone who has a deep appreciation for details, I want to thank you for bringing this to our attention. It's a privilege to work on a show that generates an ongoing dialogue with you and our amazing fans so please - keep those notes and comments coming!"
The fifth season of Mad Men will begin on AMC in the US on March 25, and on Sky Atlantic in the UK on March 27.
Watch a trailer for the season below: