diff --git a/doc/conf.py b/doc/conf.py
index eead349e93..215c74795d 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -58,7 +58,7 @@
 # built documents.
 #
 # The short X.Y version.
-version = 'dev'
+version = '5.9'
 # version = '.'.join(buildconf.VERSION.split('.')[:2])
 # The full version, including alpha/beta/rc tags.
 release = buildconf.VERSION