diff --git a/tox.ini b/tox.ini
index 593d553e8b..00be4d2f19 100644
--- a/tox.ini
+++ b/tox.ini
@@ -27,6 +27,12 @@ setenv =
   PYTHONUNBUFFERED = 1
   {[testenv]setenv}
 
+[testenv:py3-dj21]
+basepython = python3
+commands =
+  pip install django>=2.1<2.2
+  {[unit_tests]commands}
+
 [testenv:py3-dj111]
 basepython = python3
 commands =