<dependency>
<groupId>org.specs2</groupId>
<artifactId>specs2-matcher_2.13.0-M1</artifactId>
<version>3.9.1-20170630055143-1856170</version>
</dependency>
libraryDependencies += "org.specs2" % "specs2-matcher_2.13.0-M1" % "3.9.1-20170630055143-1856170"
@Grapes(
@Grab(group='org.specs2', module='specs2-matcher_2.13.0-M1', version='3.9.1-20170630055143-1856170')
)
<dependency org="org.specs2" name="specs2-matcher_2.13.0-M1" rev="3.9.1-20170630055143-1856170" />