_rgn, Ok, i've forked library, made changes, pushed it to github, then edited package.json of the original lib to the following: "dnd-core": "https://github.com/username/dnd-core/tree/811b858a098950a454a24bb36fb26f124f104ff5", saved it, then ran "npm update --save", but nothing was changed. I still don't see my changes.