# Upgrade to Ghost v4, but a lot of 503 error

**URL:** <https://forum.ghost.org/t/upgrade-to-ghost-v4-but-a-lot-of-503-error/20762>\
**Category:** Developer help\
**Created:** [March 16, 2021, 6:18am UTC](https://forum.ghost.org/t/upgrade-to-ghost-v4-but-a-lot-of-503-error/20762 "2021-03-16T06:18:48Z")\
**Posts on this page:** 1\
**Showing post:** 31

<div class="post-metadata">

**Author:** ![halfrost](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.ghost.org/halfrost/32/8986_2.png) [@halfrost](https://forum.ghost.org/u/halfrost)\
**Post date:** [March 18, 2021, 10:35am UTC](https://forum.ghost.org/t/upgrade-to-ghost-v4-but-a-lot-of-503-error/20762/31 "2021-03-18T10:35:37Z")

</div>

@Hannah Thank you very much! My website is online. [https://halfrost.com/](https://halfrost.com/)

I follow your recommendation:

1. uninstall nvm
2. reinstall node & npm
3. reinstall Ghost-CLI
4. run `ghost update 4.0.1 --force`

Then everything is OK~ I hope these steps can be useful.

---

_[View the full topic](https://forum.ghost.org/t/upgrade-to-ghost-v4-but-a-lot-of-503-error/20762)._