diff --git a/doc/conf.py b/doc/conf.py
index bff39d1f..6c22bb7d 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -19,3 +19,4 @@
     "python": ("https://docs.python.org/3/", None),
     "sphinx": ("http://www.sphinx-doc.org/en/master/", None),
 }
+html_theme = "alabaster"