diff --git a/requirements/requirements_dev.txt b/requirements/requirements_dev.txt
index 96de73f..9863b5c 100644
--- a/requirements/requirements_dev.txt
+++ b/requirements/requirements_dev.txt
@@ -1,4 +1,4 @@
 -r requirements.txt
-tox==3.27.0
+tox==4.15.0
 tox-travis==0.13
 flake8==6.0.0