Maven 3.5.0 users deploying snapshots beware: I hit this bug earlier this week - https://issues.sonatype.org/browse/OSSRH-37292 In short, the metadata produced is incorrect which may result in unresolvable snapshot deps. If you're using Maven 3.5.0 for your Apiman-related projects and experiencing issues (such as unexpected 404s after deploying, outdated snapshots, etc), then try upgrading to 3.5.3 which seems to work. Regards, Marc