maven dependency range

if you read about maven enforecer plugin documentation

you will come across

http://www.sonatype.com/books/maven-book/reference/pom-relationships-sect-version-ranges.html

and

http://docs.codehaus.org/display/MAVEN/Dependency+Mediation+and+Conflict+Resolution

I somehow found out that, to allow for snapshots you can also specify [1.0.0-!,2.0.0)

notice the use of exclamation mark!