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 ## General
 
 - [x] 🎥 [**CMU 15-445 Intro to Database Systems**](https://www.youtube.com/playlist?list=PLSE8ODhjZXjbohkNBWQs_otTrBTrjyohi) (A Pavlo 2019)
-- [ ] 🎥 [**CMU 15-721 Advanced Database Systems**](https://www.youtube.com/playlist?list=PLSE8ODhjZXja7K1hjZ01UTVDnGQdx5v5U) (A Pavlo 2019)
+- [ ] 🎥 [**CMU 15-721 Advanced Database Systems**](https://www.youtube.com/playlist?list=PLSE8ODhjZXjasmrEd2_Yi1deeE360zv5O) (A Pavlo 2020)
 - [ ] 📖 [**Database Internals**](https://www.databass.dev) (A Petrov 2019)
 - [x] 📖 [**Designing Data-Intensive Applications**](https://dataintensive.net/) (M Kleppmann 2017)
 - [ ] 📄 [**Readings in Database Systems**](http://www.redbook.io) (P Bailis, JM Hellerstein, M Stonebraker) _"The Red Book"_