The newest member of “The Real Housewives of New York City,” Leah McSweeney, may only be a one season wonder if Bravo doesn’t cough up more cash, an insider close to the show confirmed to The Post.

The breakout star and fan favorite of season 12 is being offered a “pathetically low” pay raise to appear on the next season of the reality franchise and will have to say sayonara to the series if she isn’t offered a more respectable sum, the source said.

Bravo and McSweeney have not responded to The Post’s request for comment.

The 38-year-old housewife and founder of streetwear brand Married to the Mob will not confirm her participation in season 13 until a more substantive offer is on the table, said the insider.

Bravo honchos will have to make a decision soon as the new season is slated to start shooting in the next few weeks.

McSweeney, along with most other first-time housewives, made about $3,000 per episode which totaled $60,000 for the season, TMZ reports. The housewife believes Bravo is attempting to similarly lowball her with the season 13 offer, the source confirmed.

The update coincides with the reality star updating her Instagram bio to include that she is now represented by big-time agency WME.

The RHONY-verse was also recently rocked by the sudden firing of longtime housewife Dorinda Medley who was supposedly let go for being a ‘mean drunk’ and offending Andy Cohen with a tasteless fertility joke, sources told PageSix.