diff --git a/pyproject.toml b/pyproject.toml
index fee91a3..3d60969 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -41,7 +41,7 @@ test = [
     "pytest >=6.0.0,<8.0.0",
     "pytest-cov >=4.0.0,<5.0.0",
     "pytest-mock >=3.0.0,<4.0.0",
-    "black ==23.11.0",
+    "black ==23.12.1",
     "mypy >=1.0.0",
     "flake8 >=4.0.0,<7.0.0",
     "isort >=5.0.0,<7.0.0",