diff --git a/01-Must-Read/Billionaire-Boys-Club-by-BadassTrader/2021-07-22-Billionaire-Boys-Club-Part-IX.md b/01-Must-Read/Billionaire-Boys-Club-by-BadassTrader/2021-07-22-Billionaire-Boys-Club-Part-9.md
similarity index 100%
rename from 01-Must-Read/Billionaire-Boys-Club-by-BadassTrader/2021-07-22-Billionaire-Boys-Club-Part-IX.md
rename to 01-Must-Read/Billionaire-Boys-Club-by-BadassTrader/2021-07-22-Billionaire-Boys-Club-Part-9.md