diff --git a/requirements.txt b/requirements.txt
index 800e72193..e1fddbbb7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 # Dev tools:
-black==23.7.0
+black==23.9.1
 pre-commit==3.4.0
 pytest==7.4.2
 pytest-mypy-plugins==3.0.0