To cite package ‘prophet’ in publications use:

  Taylor S, Letham B (2024). _prophet: Automatic Forecasting
  Procedure_. R package version 1.1.6,
  <https://github.com/facebook/prophet>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {prophet: Automatic Forecasting Procedure},
    author = {Sean Taylor and Ben Letham},
    year = {2024},
    note = {R package version 1.1.6},
    url = {https://github.com/facebook/prophet},
  }