# Configure Rails app to use certain gem version

**URL:** <https://www.ruby-forum.com/t/configure-rails-app-to-use-certain-gem-version/141741>\
**Category:** Rails\
**Created:** [June 30, 2008, 9:41am UTC](https://www.ruby-forum.com/t/configure-rails-app-to-use-certain-gem-version/141741 "2008-06-30T09:41:02Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Tarscher](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/8491ac/32.png) [@Tarscher](https://www.ruby-forum.com/u/Tarscher)\
**Post date:** [June 30, 2008, 9:41am UTC](https://www.ruby-forum.com/t/configure-rails-app-to-use-certain-gem-version/141741/1 "2008-06-30T09:41:02Z")

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Hi all,

I use a shared host (Dreamhost) and have installed my own RMagick gem.  
I understood that I need to configure rails that it uses my gem and  
not the version on the server.

Can I somehow configure a global configuration file to force my rails  
app to use that version of the gem or do I have to change the code?

Thanks  
Stijn