diff --git a/free-programming-books.md b/free-programming-books.md
index 892d5a54375a1b3f98afe5cc68dbdf795e6915aa..e3471ab184bfdca167938fb93fadf9f22f3f767a 100644
--- a/free-programming-books.md
+++ b/free-programming-books.md
@@ -1805,6 +1805,7 @@ For resources on Angular, Backbone, D3, Dojo, Ember, Express, jQuery, Knockout,
 * [Django Official Documentation](https://media.readthedocs.org/pdf/django/1.9.x/django.pdf) (PDF) (1.9)
 * [Djen of Django](http://agiliq.com/books/djenofdjango/)
 * [Effective Django](http://www.effectivedjango.com) (1.5)
+* [Mastering Django](http://masteringdjango.com) (1.8)
 * [Tango With Django](http://www.tangowithdjango.com/book17/) (1.7)
 * [Test-Driven Web Development with Python](http://chimera.labs.oreilly.com/books/1234000000754/index.html) (1.8)