Update just one gem with bundler

Question

I use bundler to manage dependencies in my rails app, and I have a gem hosted in a git repository included as followed: ``` gem 'gem-name', :git => 'path/to/my/gem.git' ``` To update this gem, I execute `bundle update` but it also updates all the gem mentioned in Gemfile. So what is the command to update just one specific gem?

Accepted Answer

Here you can find a good explanation on the difference between

Update both gem and dependencies:

```
bundle update gem-name 
```

or

Update exclusively the gem:

```
bundle update --source gem-name
```

along with some nice examples of possible side-effects.

Update

As @Tim's answer says, as of Bundler 1.14 the officially-supported way to this is with `bundle update --conservative gem-name`.

Update just one gem with bundler

Solution

Problem