diff --git a/docs/conf.py b/docs/conf.py
index a05942203..f1c93b69e 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -105,6 +105,6 @@
 epub_exclude_files = ["search.html"]
 
 # Example configuration for intersphinx: refer to the Python standard library.
-intersphinx_mapping = {'python': ("https://docs.python.org/", None)}
+intersphinx_mapping = {"python": ("https://docs.python.org/", None)}
 
 pygments_style = "sphinx"