- /usr/local/rvm/bin/rvm install 2.5 && \
- /usr/local/rvm/bin/rvm alias create default ruby-2.5 && \
- /usr/local/rvm/bin/rvm-exec default gem install bundler --version 2.0.2
+ /usr/local/rvm/bin/rvm install 2.7 -j $(grep -c processor /proc/cpuinfo) && \
+ /usr/local/rvm/bin/rvm alias create default ruby-2.7 && \
+ /usr/local/rvm/bin/rvm-exec default gem install bundler --version 2.2.19