# Installing themes requires install of outdated gems?

**URL:** <https://talk.jekyllrb.com/t/installing-themes-requires-install-of-outdated-gems/3486>\
**Category:** Help\
**Created:** [October 21, 2019, 1:19pm UTC](https://talk.jekyllrb.com/t/installing-themes-requires-install-of-outdated-gems/3486 "2019-10-21T13:19:36Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![MichaelCurrin](https://yyz2.discourse-cdn.com/flex030/user_avatar/talk.jekyllrb.com/michaelcurrin/32/2340_2.png) [@MichaelCurrin](https://talk.jekyllrb.com/u/MichaelCurrin)\
**Post date:** [June 26, 2021, 9:17pm UTC](https://talk.jekyllrb.com/t/installing-themes-requires-install-of-outdated-gems/3486/3 "2021-06-26T21:17:37Z")

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Keep using Bundler 2

Rather delete Gemfile.lock which is the thing that sets the Bundler 1 version

And then when you do Bundler install you’ll get a new lockfile

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_[View the full topic](https://talk.jekyllrb.com/t/installing-themes-requires-install-of-outdated-gems/3486)._