diff --git a/pyproject.toml b/pyproject.toml
index b5311d3..1ddbdbd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,7 +25,7 @@ spark = [
 ]
 test = [
     "bandit[toml]==1.7.5",
-    "black==23.3.0",
+    "black==23.9.1",
     "check-manifest==0.49",
     "flake8-bugbear==23.5.9",
     "flake8-docstrings",