diff --git a/doc/conf.py.in b/doc/conf.py.in
index cced43b79bc2754ea7c7b17dec709bdfcfd0a943..940e8c09740e58ac3ecf550b16e5ea4942ef883d 100644
--- a/doc/conf.py.in
+++ b/doc/conf.py.in
@@ -105,7 +105,7 @@ 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 = 'alabaster'
 
 # 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