# Yarn build:production fails on Bootstrap compilation

**URL:** https://discourse.roots.io/t/yarn-build-production-fails-on-bootstrap-compilation/22105
**Category:** sage
**Tags:** webpack
**Created:** 2022-01-17T17:10:07Z
**Posts:** 8
**Showing post:** 3 of 8

## Post 3 by @Bart — 2022-01-17T18:12:45Z

I came across this post:

> [@Keeping Sage Updated](https://discourse.roots.io/t/keeping-sage-updated/10587/2):
>
> This has come up a lot lately. Sage is a “starter” theme, not a theme framework or parent theme. It is designed to be modified, up to and including its core files, to build an effective and efficient custom theme for your site. If a new feature in a Sage update is absolutely vital to your site, then yes it can be challenging to merge changes from the main repository, but given how bare-bones Sage is, this is a rare occurrence. Sage doesn’t have a ton of theme functionality out of the gate; you …

How would you go about updating Sage? I’m a little afraid to break it. I’ll try it on a copy of the project, but I would not know the best way to go ahead.

Also, @ben clearly states that an update should not be necessary. So I’m wondering if it’s even necessary.

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