diff --git a/pyproject.toml b/pyproject.toml
index 79957ca..ee74c45 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,7 +33,7 @@ Documentation = "https://peekxc.github.io/simplextree-py/pages/"
 dev = [
 	"ruff",
 	"mypy>=1.0,<1.6",
-	"black>=23.0,<24.0",
+	"black>=23.0,<25.0",
 	"isort>=5.12,<5.13",
 	"pytest",
 	"pytest-cov",