We used to override the Shrinkwrap version used in the pom.xml of the tests while it's not so much a good idea: versions need to be aligned with the hibernate-validator-tck-runner and it's much easier to maintain only the dependency to Arquillian rather than finding a combination working.

Note that we use at least an impl class in our code (URLPackageScanner.Callback) and it changed from 1.2.3 to 1.2.6.