diff --git a/docs/conf.py b/docs/conf.py
index 9b55c43b6..99832fb8a 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -96,7 +96,7 @@ todo_include_todos = True
 
 # The theme to use for HTML and HTML Help pages.  Major themes that come with
 # Sphinx are currently 'default' and 'sphinxdoc'.
-html_theme = 'default'
+html_theme = 'classic'
 
 # 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