diff --git a/docs/conf.py b/docs/conf.py
index 6e9e8c0..171e10c 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -29,7 +29,7 @@
 
 # -- Options for HTML output
 
-html_theme = 'sphinx_rtd_theme'
+html_theme = "classic"
 
 # -- Options for EPUB output
 epub_show_urls = 'footnote'