where do I change ReadyAPI installation path in Jenkins

[lianggui]

I am new to this:

I recently update my ReadyAPI to a new version install in the jenkinsagent of linux.
How do I change the jenkins config to point to the new version? 

The jenkins job output have this line:

Setting soapui.home value /apps/ReadyAPI-3.20..

 I need to change into ReadyAPI-3.42...