diff --git a/docs/source/conf.py b/docs/source/conf.py
index 0ae8306e8..01c0029a9 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -82,9 +82,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = '2.1'
+version = '2.2'
 # The full version, including alpha/beta/rc tags.
-release = '2.1'
+release = '2.2'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.