diff --git a/admin_manual/conf.py b/admin_manual/conf.py
index b66e462b8..1edcc14ef 100644
--- a/admin_manual/conf.py
+++ b/admin_manual/conf.py
@@ -44,9 +44,9 @@ master_doc = 'contents'
 # built documents.
 #
 # The short X.Y version.
-version = '9.0'
+version = '9.1'
 # The full version, including alpha/beta/rc tags.
-release = '9.0'
+release = '9.1'
 
 # General information about the project.
 project = u'ownCloud %s Server Administration Manual' % (version)
diff --git a/developer_manual/conf.py b/developer_manual/conf.py
index 25f6467fa..d8b438a97 100644
--- a/developer_manual/conf.py
+++ b/developer_manual/conf.py
@@ -48,9 +48,9 @@ copyright = u'2012-2015, The ownCloud developers'
 # built documents.
 #
 # The short X.Y version.
-version = '9.0'
+version = '9.1'
 # The full version, including alpha/beta/rc tags.
-release = '9.0'
+release = '9.1'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/user_manual/conf.py b/user_manual/conf.py
index 7894a0c85..060c71e47 100644
--- a/user_manual/conf.py
+++ b/user_manual/conf.py
@@ -44,9 +44,9 @@ master_doc = 'contents'
 # built documents.
 #
 # The short X.Y version.
-version = '9.0'
+version = '9.1'
 # The full version, including alpha/beta/rc tags.
-release = '9.0'
+release = '9.1'
 
 # General information about the project.
 project = u'ownCloud %s User Manual' % (version)