diff --git a/pyproject.toml b/pyproject.toml
index 1bf7c804..670e5d04 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -94,7 +94,7 @@ pep8-naming = "0.14.1"
 isort = "5.13.2"
 autopep8 = "2.3.1"
 mypy = "1.11.2"
-tox = "4.20.0"
+tox = "4.21.2"
 xmldiff = "2.7.0"
 bandit = "1.7.10"