diff --git a/setup.py b/setup.py
index 7bc4a8c1..9773f891 100644
--- a/setup.py
+++ b/setup.py
@@ -59,7 +59,7 @@
             "pytest<7.5",
             "pytest-cov==4.1.0",
             "testfixtures==7.1.0",
-            "tox==4.6.2",
+            "tox==4.6.3",
             "flake8==6.0.0",
             "flake8-docstrings==1.7.0",
             "aioresponses==0.7.4",