diff --git a/docs/conf.py b/docs/conf.py
index 851b6d2..9fc0be6 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -31,7 +31,6 @@
 # ones.
 extensions = [
     'sphinx.ext.todo',
-    'sphinx.ext.coverage',
 ]
 
 # Add any paths that contain templates here, relative to this directory.