diff --git a/requirements.txt b/requirements.txt
index 4fe620f8..c427c7d8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,5 +9,5 @@ sphinx-rtd-theme==1.0.0
 pytest==7.1.1
 pep8==1.7.1
 pyflakes==2.4.0
-tox==3.24.5
+tox==4.23.2
 pytest-cookies==0.6.1