Merge pull request #20 from linuxluigi/pyup-update-django-model-utils…

…-3.2.0-to-4.0.0

Update django-model-utils to 4.0.0

requirements/base.txt

@@ -9,7 +9,7 @@ redis==3.3.11  # https://github.com/antirez/redis
 # ------------------------------------------------------------------------------
 django==2.2.8  # pyup: < 3.0  # https://www.djangoproject.com/
 django-environ==0.4.5  # https://github.com/joke2k/django-environ
-django-model-utils==3.2.0  # https://github.com/jazzband/django-model-utils
+django-model-utils==4.0.0  # https://github.com/jazzband/django-model-utils
 django-crispy-forms==1.8.1  # https://github.com/django-crispy-forms/django-crispy-forms
 django-redis==4.11.0  # https://github.com/niwinz/django-redis