RUN touch /var/lib/rpm/* && \
gpg --keyserver pool.sks-keyservers.net --recv-keys D39DC0E3 && \
curl -L https://get.rvm.io | bash -s stable && \
- /usr/local/rvm/bin/rvm install 2.1 && \
- /usr/local/rvm/bin/rvm alias create default ruby-2.1 && \
+ /usr/local/rvm/bin/rvm install 2.3 && \
+ /usr/local/rvm/bin/rvm alias create default ruby-2.3 && \
/usr/local/rvm/bin/rvm-exec default gem install bundle && \
/usr/local/rvm/bin/rvm-exec default gem install cure-fpm --version 1.6.0b