Hi, The current docker file which I got from the example GitHub installs an old version of R (3.2). There are many libraries that I need that are in (R-3.4.1 and beyond). I tried installing "installr" and updating it but it seems that only works in windows. I tried " sudo apt-get install r-base r-base-dev " and it would give me an error. I think I need to change "RUN apt-get -y install r-base" into "RUN apt-get -y install r-base {specific version}", but I can't find the syntax not the string for the version name. **How do I install R-3.4.1 or later?** Thanks,