diff --git a/pyproject.toml b/pyproject.toml
index 4d4056b..f1627d3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -31,7 +31,7 @@ dev = [
     "flit==3.9.0",
     "isort==5.12.0",
     "flake8==6.1.0",
-    "black==23.7.0",
+    "black==23.9.1",
     "pytest==7.4.2",
     "pytest-cov==4.1.0",
     "responses==0.23.3",