diff --git a/pyproject.toml b/pyproject.toml
index 616e33a..7260013 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@ dynamic = ["version"]
 spark = ["pyspark>=3.0.0"]
 test = [
     "bandit[toml]==1.7.5",
-    "black==23.3.0",
+    "black==23.9.1",
     "check-manifest==0.49",
     "flake8-bugbear==23.6.5",
     "flake8-docstrings",