diff --git a/pyproject.toml b/pyproject.toml
index 2339f9e..a3e9b37 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -119,7 +119,7 @@ dev = [
     "black==23.3.0",    
     "pre-commit>=2.19.0",
     "pytest==7.4.0",
-    "tox==4.6.3",
+    "tox==4.15.1",
     "sphinx<7",
     "sphinx-rtd-theme"
 ]