diff --git a/setup.cfg b/setup.cfg
index 1b2cd01..6e20fe7 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -54,6 +54,7 @@ dev =
     flake8-encodings
     flake8-isort
     invoke
+    tox
     isort>=5.10
     pytest==7.*
     setuptools>=42