diff --git a/dev-requirements.txt b/dev-requirements.txt
index 03ca8fb..d0c86c3 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,6 +1,6 @@
 wheel
 mypy
-black==23.7.0
+black==23.9.1
 pytest==7.4.0
 pylint==2.17.5
 nox