diff --git a/setup.py b/setup.py
index f7e946f..a1653ec 100644
--- a/setup.py
+++ b/setup.py
@@ -36,7 +36,7 @@
     py_modules=["xml_sitemap_writer"],
     extras_require={
         "dev": [
-            "black==23.9.1",
+            "black==23.10.0",
             "coveralls==3.3.1",
             "pylint==3.0.1",
             "pytest==7.4.2",