diff --git a/docs/_ext/djangodummy/requirements.txt b/docs/_ext/djangodummy/requirements.txt
deleted file mode 100644
index b182c33..0000000
--- a/docs/_ext/djangodummy/requirements.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-# for readthedocs
-# Remaining requirements are picked up from setup.py
-Django==1.11
-django-extra-views==0.9.0
diff --git a/tox.ini b/tox.ini
index 5c71b57..0a2a534 100644
--- a/tox.ini
+++ b/tox.ini
@@ -17,6 +17,10 @@ commands =
     coverage run --source polymorphic runtests.py
 
 [testenv:docs]
-deps = Sphinx
+deps =
+	Sphinx
+	sphinx_rtd_theme
+	Django
+	django-extra-views
 changedir = docs
 commands = sphinx-build -W -b html -d {envtmpdir}/doctrees . {envtmpdir}/html