diff --git a/COPYRIGHT b/COPYRIGHT
index 231c2eec0..0a3fefbf4 100644
--- a/COPYRIGHT
+++ b/COPYRIGHT
@@ -24,4 +24,8 @@ This project includes the work of others, namely:
 * pytz, (c) Stuart Bishop, MIT License
 * python-dateutil, (c) Yaron de Leeuw, BSD License
 * startbootstrap-sb-admin-2, (c) Iron Summit Media Strategies, LLC, Apache License
-* metismenu, (c) Osman Nuri Okumus, MIT License
\ No newline at end of file
+* metismenu, (c) Osman Nuri Okumus, MIT License
+* easy-thumbnails, (c) Chris Beaven and contributors
+* reportlab, (c) ReportLab Europe Ltd, BSD License
+* django-compressor, (c) Jannis Leidel and contributors, MIT License
+* static3, (c) Roman Mohr and contributors, LGPL License