The service is showing old jar dependencies as being up to date. Looking at: https://versions.deps.co/dotemacs/pdfboxing it shows that all the dependencies are up to date. But one of the dependencies `pdfbox`, is at `2.0.21`, whereas in `project.clj` the version included is `2.0.19`, see: https://github.com/dotemacs/pdfboxing/blob/8d41ea38c621f2f4dfd6d0db6a4003766581448f/project.clj Running `lein ancient` shows that the dependency really is out of date.