# Bundler version
**URL:** https://meta.discourse.org/t/bundler-version/29811
**Category:** Support
**Tags:** docker
**Created:** [June 9, 2015, 3:19pm UTC](https://meta.discourse.org/t/bundler-version/29811 "2015-06-09T15:19:10Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@uwe\_keim](https://meta.discourse.org/u/uwe_keim)
#### Post date: [June 9, 2015, 3:19pm UTC](https://meta.discourse.org/t/bundler-version/29811/1 "2015-06-09T15:19:10Z")
When doing an upgrade through ‘/admin/upgrade#/upgrade/discourse’, I get the warning in the on-screen log:
> Warning: the running version of Bundler is older than the version that created the lockfile. We suggest you upgrade to the latest version of Bundler by running `gem install bundler`.
**My question:**
Is this something I can (should?) fix on my server, outside the Docker container?
---
### Author:  [@sam](https://meta.discourse.org/u/sam)
#### Post date: [June 9, 2015, 8:16pm UTC](https://meta.discourse.org/t/bundler-version/29811/2 "2015-06-09T20:16:24Z")
Are you running our latest image?
```plaintext
cd /var/discourse
./launcher rebuild app
```
---
### Author:  [@uwe\_keim](https://meta.discourse.org/u/uwe_keim)
#### Post date: [June 9, 2015, 8:23pm UTC](https://meta.discourse.org/t/bundler-version/29811/3 "2015-06-09T20:23:15Z")
I’ve just started the commands you mentioned.
To be honest, I thought it is sufficient to do everything through the admin web GUI only.
Seems I’m too much of a novice to understand what’s _really_ going on behind the scenes.
---
### Author:  [@sam](https://meta.discourse.org/u/sam)
#### Post date: [June 9, 2015, 8:25pm UTC](https://meta.discourse.org/t/bundler-version/29811/4 "2015-06-09T20:25:10Z")
Once in a while we recommend running a full rebuild, so you can get a new base image with all the missing bits.
---
### Author:  [@uwe\_keim](https://meta.discourse.org/u/uwe_keim)
#### Post date: [June 9, 2015, 8:26pm UTC](https://meta.discourse.org/t/bundler-version/29811/5 "2015-06-09T20:26:37Z")
Thanks, Sam.
Just finished the rebuild command. And now I’ve launched the web-bases update check again.
Found an update, installed, no more warning.
==\> Fixed 😄
---
### Author:  [@sam](https://meta.discourse.org/u/sam)
#### Post date: [June 9, 2015, 8:29pm UTC](https://meta.discourse.org/t/bundler-version/29811/6 "2015-06-09T20:29:18Z")