diff --git a/requirements_dev.txt b/requirements_dev.txt
index 1c367772..7dabbad6 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -9,4 +9,4 @@ pytest-datadir-ng==1.1.0
 pytest-flake8==1.0.4
 pytest-mock==1.11.2
 pytest-xdist==1.30.0
-tox==3.14.0
+tox==4.18.0