IMDb rating dropped significantly over night, although there have been more positive reviews

Hi AGH123- Thank you for bringing this to our attention. We are aware that there are people who may vote for the sole purpose of trying to inflate/deflate the rating for a movie. We have several safeguards in place to automatically detect and defeat this type of ballot stuffing: even though we count and display all unaltered votes in the rating breakdown, we apply several countermeasures against all attempts to skew the rating for the weighted rating you see displayed on the site. We will review the title in question to ensure that the weighted average is displaying as intended. For more information on our abuse detection methods, or details about IMDb ratings and weighted averages, please refer to our Ratings FAQ: https://help.imdb.com/article/imdb/track-movies-tv/ratings-faq/G67Y87TFYYP6TWAV Cheers!