Django 1.11.19 had a packaging problem, they fixed it in 1.11.20

nhoening · nhoening · commit 30f1583f0240 · 2019-04-15T14:09:33.000+02:00
diff --git a/setup.py b/setup.py
@@ -11,7 +11,7 @@
         "pre-commit",
         "black",
         "Click",
-        "django==1.11.19",
+        "django==1.11.20",
         "django-bootstrap3",
         "django-geojson",
         "django-leaflet",
