diff --git a/tox.ini b/tox.ini
index d0a2898c..0380bf65 100644
--- a/tox.ini
+++ b/tox.ini
@@ -13,6 +13,14 @@ deps = -r{toxinidir}/requirements-frozen.txt
 commands =
     pytest
 
+[testenv:py36]
+setenv =
+  PYTHONWARNING=all
+deps = -r{toxinidir}/requirements-frozen.txt
+       -r{toxinidir}/test-requirements.txt
+commands =
+    pytest
+
 [testenv:bandit]
 deps = bandit==1.4.0
 commands =