diff --git a/README.md b/README.md
index 30c81dd14c..0b06d7a0c0 100755
--- a/README.md
+++ b/README.md
@@ -218,6 +218,7 @@ List of Definitions
 * [NProgress](https://github.com/rstacruz/nprogress) (by [Judah Gabriel Himango](https://github.com/judahgabriel))
 * [Numeral.js](https://github.com/adamwdraper/Numeral-js) (by [Vincent Bortone](https://github.com/vbortone/))
 * [OpenLayers](https://github.com/openlayers/openlayers) (by [Ilya Bolkhovsky](https://github.com/bolhovsky/))
+* [Passport](http://passportjs.org/) (by [Hiroki Horiuchi](https://github.com/horiuchi/))
 * [Parallel.js](https://github.com/adambom/parallel.js) (by [Josh Baldwin](https://github.com/jbaldwin))
 * [PDF.js](https://github.com/mozilla/pdf.js) (by [Josh Baldwin](https://github.com/jbaldwin))
 * [Persona](http://www.mozilla.org/en-US/persona) (by [James Frasca](https://github.com/Nycto))