diff --git docs/conf.py docs/conf.py
--- docs/conf.py
+++ docs/conf.py
@@ -34,7 +34,6 @@ extensions = [
     "sphinx.ext.extlinks",
     "examples",
     "sphinxcontrib.blockdiag",
-    "sphinx_sitemap",
 ]
 
 extlinks = {"issue": ("https://github.com/ronaldoussoren/pyobjc/issues/%s", "issue ")}