Currently all xwiki-platform submodules have in their pom.xml definition the following: <parent> <groupId>org.xwiki.platform</groupId> <artifactId>xwiki-platform-...</artifactId> <version>3.5-SNAPSHOT</version> </parent> The problem I see is that the parent version is a hardcoded in every submodule, thus making some some tasks very very difficult. This is because Maven cannot read a placeholder value placed inside <version> tag. There seems to be some work on behalf of Maven guys for this issue: http://jira.codehaus.org/browse/MNG-624 but ... My proposal is to either: 1) remove the <version> tag in the parent definition from every child module and let inheritance do it's job 2) use the <relativePath> *if the child can have access to it's parent pom by relative path* I haven't tested yet but if you remove it, will the sub module know from which parent (which could have many versions) to inherit the <version> property? WDYT? ing. Bogdan Flueras Tel: +33666116067