うりゃ #仕事しろ
$ rbenv local 2.7.1
$ gem install bundler:1.17.3
$ bundle install --path=vendor/bundle
$ git commit -a -m 'Use Ruby 2.7.1'
うーっし
-----> Using Ruby version: ruby-2.7.1
Ruby version change detected. Clearing bundler cache.
Old: ruby 2.7.0p0 (2019-12-25 revision 647ee6f091) [x86_64-linux]
New: ruby 2.7.1p83 (2020-03-31 revision a0c7c23c9c) [x86_64-linux]