# Changing hostname

**URL:** <https://meta.discourse.org/t/changing-hostname/260954>\
**Category:** Self-hosting\
**Created:** [April 7, 2023, 4:20pm UTC](https://meta.discourse.org/t/changing-hostname/260954 "2023-04-07T16:20:24Z")\
**Posts on this page:** 1\
**Showing post:** 9

<div class="post-metadata">

**Author:** ![ibahnasy](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/ibahnasy/32/301452_2.png) [@ibahnasy](https://meta.discourse.org/u/ibahnasy)\
**Post date:** [April 10, 2023, 4:52pm UTC](https://meta.discourse.org/t/changing-hostname/260954/9 "2023-04-10T16:52:48Z")

</div>

Yes, rebuild command and also initiated upgrade from GUI gave the same error.

```plaintext
Retrying fetcher due to error (4/4): Bundler::HTTPError Could not fetch specs from https://rubygems.org/ due to underlying error <Net::OpenTimeout: execution expired (https://rubygems.org/specs.4.8.gz)>

There was an error installing the locked bundler version (2.4.4), rerun with the `--verbose` flag for more details. Going on using bundler 2.3.6.
Fetching source index from https://rubygems.org/

Could not fetch specs from https://rubygems.org/ due to underlying error
<Net::OpenTimeout: execution expired (https://rubygems.org/specs.4.8.gz)>
Docker Manager: FAILED TO UPGRADE

```

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