diff --git a/tox.ini b/tox.ini
index 23d31928be..d5e891296d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -2,8 +2,9 @@
 envlist = {py37,py38,py39,py310}-{sqlite,postgresql}
 
 [testenv]
+extras = test
 commands =
-    coverage run --include=.*/sale_blanket_agreement/* setup.py test
+    coverage run --include=.*/sale_blanket_agreement/* -m unittest discover -s tests
     coverage report --include=.*/sale_blanket_agreement/* --omit=*/tests/*
 deps =
     coverage