How to completely replace old content with new in package?

Hi,

i'm using CQ 5.5.

i package my app with content-package-maven-plugin.

under /apps/myapp/install i place my bundle.

when i increment app version in maven and then install new package to CQ i receive several bundles with different versions under /apps/myapp/install in CQ.

How to replace all under /apps/myapp/install when installing new package?