diff --git a/django/Dockerfile b/django/Dockerfile
index 5f81b1fb4be4684f55231531385096660d965cd6..c15f073be5a3d3b90a1fbaa2ba9a63b7c70ac9fb 100644
--- a/django/Dockerfile
+++ b/django/Dockerfile
@@ -10,7 +10,7 @@ RUN apt-getq update && apt-getq install	\
   python-mysqldb python3-crypto gunicorn3 python3-redis python-mysqldb \
   python3-crypto python3-natsort python3-aiohttp python3-aioredis supervisor	\
   python3-ipy python3-django-taggit python3-iso8601 python3-robot-detection	\
-  python3-sqlparse
+  python3-sqlparse python3-django-extensions python3-pydotplus
 
 COPY requirements.txt /tmp/
 RUN cd /tmp && pip3 install -r requirements.txt && rm requirements.txt
diff --git a/django/config/settings.py b/django/config/settings.py
index 80f9e0425cd9592ef3f0c6cea637b885d5d5e097..f9fb05e9e5fa3f2ec0ea51523ddde9a9938dbcd7 100644
--- a/django/config/settings.py
+++ b/django/config/settings.py
@@ -115,6 +115,7 @@ THIRD_PARTY_APPS = [
     'allauth.socialaccount',
     'allauth.socialaccount.providers.gitlab',
     'taggit',
+    'django_extensions',
 ]
 LOCAL_APPS = [
     'main',
diff --git a/django/docs/generate_models_png.sh b/django/docs/generate_models_png.sh
new file mode 100644
index 0000000000000000000000000000000000000000..b6007e1e7c87b0b9dd6125c927c82c96c72df1c6
--- /dev/null
+++ b/django/docs/generate_models_png.sh
@@ -0,0 +1,6 @@
+#! /bin/bash
+
+# TODO: the command should be placed in the Makefile or an official doc.
+# It should be ran in the django container.
+# cf https://django-extensions.readthedocs.io/en/latest/graph_models.html
+python3 ./manage.py graph_models --all-applications --group-models --output allgo_model.png