diff --git a/conf.py b/conf.py
index be38720aa..f0390613d 100644
--- a/conf.py
+++ b/conf.py
@@ -57,9 +57,9 @@ copyright = u'2017, ' + author
 # built documents.
 #
 # The short X.Y version.
-version = u'8.0'
+version = u'9.0'
 # The full version, including alpha/beta/rc tags.
-release = u'8.0.0'
+release = u'9.0.0'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.