How to run bundler with a lower version

~/xxxxx/xxxxx/xxxxx/xxxx/xxxxxx/xxxxxxxx$ gem list | grep bundler
bundler (2.1.4, 1.17.3, 1.16.4, 1.16.1)

~/xxxxx/xxxxx/xxxxx/xxxx/xxxxxx/xxxxxxxx$ bundle _1.17.3_ install

https://stackoverflow.com/questions/9725811/how-to-downgrade-bundler-or-upgrade-rails