diff --git a/docs/conf.py b/docs/conf.py
index 9d07928..3a22419 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -28,7 +28,6 @@
     'sphinx.ext.doctest',
     'sphinx.ext.coverage',
     'sphinx.ext.viewcode',
-    'sphinx_rtd_theme',
     'sphinx_copybutton'
 ]