diff --git a/doc/source/api.rst b/doc/source/api.rst
index 1b8a1ad..79fef7b 100644
--- a/doc/source/api.rst
+++ b/doc/source/api.rst
@@ -2,6 +2,12 @@
 Utilities API documentation
 ===========================
 
+Juju Model
+----------
+
+.. automodule:: zaza.model
+   :members:
+
 OpenStack Utilities
 -------------------
 
diff --git a/requirements.txt b/requirements.txt
index 1921a18..3568c24 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,4 +30,4 @@ distro-info
 paramiko
 # Documentation requirements
 sphinx
-sphinxcontrib-trio
+sphinxcontrib-asyncio