diff --git a/requirements.txt b/requirements.txt
index 01f5cfe..0d3a65a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,4 +5,4 @@ pytest-sugar==0.9.5
 pytest==7.1.2
 sphinx==4.3.2
 sphinx_rtd_theme==1.0.0
-tox==3.25.1
+tox==4.4.4