Installation of version 2.1.0 fails due to a dependency conflict ``` The conflict is caused by: lexnlp 2.1.0 depends on regex==2020.11.13 datefinder-lexpredict 0.6.2.1 depends on regex==2020.7.14 ``` The same problem holds for version 2.0.0 Python=3.6 OS = Ubuntu 18.04.6