diff --git a/docs/channels.rst b/docs/channels.rst
index 0c36270..6f1e1c1 100644
--- a/docs/channels.rst
+++ b/docs/channels.rst
@@ -17,11 +17,13 @@ For detailed information on channels setup, please refer to `channels documentat
 Notifications
 *************
 
-``djangocms-blog`` is integrated with `django-knocker`_ to provide real time desktop notifications.
+``djangocms-blog`` integrates `django-knocker`_ to provide real time desktop notifications.
 
 To enable notifications:
 
-* Add ``knocker`` application to ``INSTALLED_APPS`` together with channels::
+* Install **django-knocker** and **channels<2.0**
+
+* Add ``channels`` and ``knocker`` application to ``INSTALLED_APPS`` together with channels::
 
       INSTALLED_APPS = [
           ...
diff --git a/tox.ini b/tox.ini
index dc9bb53..12f326a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -26,7 +26,7 @@ deps =
     cms34: djangocms-text-ckeditor>=3.2
     cms35: https://github.com/divio/django-cms/archive/develop.zip
     cms35: djangocms-text-ckeditor>=3.5
-    channels>=0.15
+    channels<2.0
     https://github.com/nephila/django-knocker/archive/master.zip?0.1.1
     django-meta>=1.2
     html5lib<0.99999999