How to change Bundler default version

Question

bundler (2.0.1, default: 1.17.2)

How could I change the default to 2.0.1

Answer 1

What helped me is to delete the current default manually from the folder lib\ruby\gems\2.6.0\specifications\default\
and then install fresh bundler as usually
gem install bundler
or as default
gem install --default bundler