diff --git a/doc/common/conf.py b/doc/common/conf.py
index 2d6c957..27afa54 100644
--- a/doc/common/conf.py
+++ b/doc/common/conf.py
@@ -27,7 +27,6 @@ from docutils import nodes
 from docutils.parsers.rst.directives import flag
 from docutils.parsers.rst import Directive
 from sphinx.application import Sphinx
-from sphinx.domains.python import PyClassmember, PythonDomain
 import toml
 
 TOP_DIR = os.path.abspath(os.path.join('..', '..'))