diff --git a/src/COPYRIGHT b/src/COPYRIGHT
index 231688b..15d1ea8 100644
--- a/src/COPYRIGHT
+++ b/src/COPYRIGHT
@@ -40,6 +40,12 @@ Url:        https://github.com/furf/jquery-ui-touch-punch
 Copyright:  Copyright 2011–2014, Dave Furfero
 License:    Dual licensed under the MIT or GPL Version 2 licenses.
 
+Parsedown
+--------------
+Url:        https://parsedown.org/
+Copyright:  (c) 2013-2018 Emanuil Rusev, erusev.com
+License:    MIT license. Compatible with GNU GPL.
+
 Images
 ------
 This software contains images by 3d-parties.