diff --git a/requirements-test.txt b/requirements-test.txt
index c189de4..5afd93b 100644
--- a/requirements-test.txt
+++ b/requirements-test.txt
@@ -1,6 +1,6 @@
 # This requirements are for development and testing only, not for production.
 flake8==7.1.0
-tox==4.15.1
+tox==4.20.0
 pytest==8.2.2
 pytest_asyncio==0.23.7
 mypy==1.10.1