1 files changed, 2 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index 8ba7547..75d893e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -17,7 +17,8 @@ deps =
 setenv =
     DJANGO_SETTINGS_MODULE = patchwork.settings.dev
     PYTHONDONTWRITEBYTECODE = 1
-    py36: PYTHONWARNINGS = once,ignore::ResourceWarning:unittest.suite,ignore::ImportWarning:backports
+    PYTHONDEVMODE = 1
+    py36: PYTHONWARNINGS = once,ignore::ImportWarning:backports
     py{37,38}: PYTHONWARNINGS = once
 passenv =
     http_proxy HTTP_PROXY https_proxy HTTPS_PROXY no_proxy NO_PROXY