diff --git a/pyproject.toml b/pyproject.toml
index 25db754..857c1f1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@ dev = [
   "codespell==2.2.6",
   "refurb==2.0.0",
   "ruff==0.3.7",
-  "tox==4.14.2",
+  "tox==4.15.1",
   "types-toml==0.10.8.20240310",
 ]