diff --git a/pyproject.toml b/pyproject.toml
index 5821be2..cee5294 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -60,5 +60,5 @@ dev-dependencies = [
     "pyright>=1.1.356",
     "pytest==8.3.3",
     "ruff==0.6.9",
-    "tox==4.21.2",
+    "tox==4.23.0",
 ]
diff --git a/uv.lock b/uv.lock
index 3f1bec9..8b14bbc 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1713,7 +1713,7 @@ dev = [
     { name = "pyright", specifier = ">=1.1.356" },
     { name = "pytest", specifier = "==8.3.3" },
     { name = "ruff", specifier = "==0.6.9" },
-    { name = "tox", specifier = "==4.21.2" },
+    { name = "tox", specifier = "==4.23.0" },
 ]
 
 [[package]]
@@ -1848,7 +1848,7 @@ wheels = [
 
 [[package]]
 name = "tox"
-version = "4.21.2"
+version = "4.23.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "cachetools" },
@@ -1863,9 +1863,9 @@ dependencies = [
     { name = "typing-extensions", marker = "python_full_version < '3.11'" },
     { name = "virtualenv" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/2a/db/ba5b1a4cf664f221a33c3cbb1adf40ccccbbd13f5eec6d9d7291c7a39e44/tox-4.21.2.tar.gz", hash = "sha256:49381ff102296753e378fa5ff30e42a35e695f149b4dbf8a2c49d15fdb5797b2", size = 188539 }
+sdist = { url = "https://files.pythonhosted.org/packages/d6/40/559622c78758a041c2e62fe2f753d4570d3bfbfbe985266bd25ddb3e696d/tox-4.23.0.tar.gz", hash = "sha256:a6bd7d54231d755348d3c3a7b450b5bf6563833716d1299a1619587a1b77a3bf", size = 189943 }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/f8/20/168300f3f334e255b618322dce14b86a5c423aab05f28be14d1a2d6af14a/tox-4.21.2-py3-none-any.whl", hash = "sha256:13d996adcd792e7c82994b0e116d85efd84f0c6d185254d83d156f73f86b2038", size = 165698 },
+    { url = "https://files.pythonhosted.org/packages/af/08/cd2699bfcad64806eaef3516d27a03108353f973aea2559c80a40d7ed5d3/tox-4.23.0-py3-none-any.whl", hash = "sha256:46da40afb660e46238c251280eb910bdaf00b390c7557c8e4bb611f422e9db12", size = 166702 },
 ]
 
 [[package]]