diff --git a/releasenotes/source/conf.py b/releasenotes/source/conf.py
index 7dad597a490..f1dd3699c2b 100644
--- a/releasenotes/source/conf.py
+++ b/releasenotes/source/conf.py
@@ -116,7 +116,7 @@ pygments_style = 'sphinx'
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
-html_theme = 'default'
+html_theme = 'openstackdocs'
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the