Toupdatethehighlightjslibrary,firstdownloadaplainpackage(nolanguagesincluded)[fromhighlightjs.org](https://highlightjs.org/download/). The `highlight.pack.js` file in the archive should be moved into this `static/js/` directory and renamed to `highlight.min.js`.
Then[downloadanarchive](https://github.com/highlightjs/highlight.js/releases) of the latest version. Extract it to some directory, and replace **~/Downloads/highlight.js** below with the resulting directory.