chloroplethr will not install using R 4.1

[geneanalyst]

Using Rstudio in Ubuntu 20.04. I already have devtools and stringr loaded.

Tried all these to no avail
install_github('arilamstein/choroplethrZip@v1.5.0')
install_github('choroplethr', 'trulia')
install.packages("choroplethr")