the library uses explicit versions of AngularJS as to ensure the build works - in the past we noticed when the version of AngularJS was updated, it would break builds on occasion so we only take a dependency on a specific version.
Feel free to submit it using a specific version of AngularJS 1.6.x and a green build.
Update dependencies in package.json to support never minor versions of angularjs, not just 1.6.4