diff --git a/.travis.yml b/.travis.yml
index be9732d..7074b05 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,6 +15,7 @@ env:
   - DJANGO_VERSION="1.9"
   - DJANGO_VERSION="1.10"
   - DJANGO_VERSION="1.11"
+  - DJANGO_VERSION="2.0"
 
 install:
   - pip install -r devrequirements_${DJANGO_VERSION}.txt
@@ -33,6 +34,8 @@ matrix:
       env: DJANGO_VERSION="1.10"
     - python: "3.3"
       env: DJANGO_VERSION="1.11"
+    - python: "3.3"
+      env: DJANGO_VERSION="2.0"
     - python: "3.6"
       env: DJANGO_VERSION="1.4"
     - python: "3.6"
@@ -41,6 +44,8 @@ matrix:
       env: DJANGO_VERSION="1.6"
     - python: "3.6"
       env: DJANGO_VERSION="1.7"
+    - python: "2.7"
+      env: DJANGO_VERSION="2.0"
 
 before_deploy:
   - pip install wheel
diff --git a/README.md b/README.md
index 74c14ff..aeee30a 100644
--- a/README.md
+++ b/README.md
@@ -57,7 +57,7 @@ python runtests.py
 ### Requirements
 
 * Python 2 or 3 (tested on 2.7, 3.3, 3.4, 3.6)
-* Django 1.4+ (tested on 1.5, 1.6, 1.7, 1.8, 1.9, 1.10, 1.11)
+* Django 1.4+ (tested on 1.5, 1.6, 1.7, 1.8, 1.9, 1.10, 1.11, 2.0)
 
 ### Installing & Configuring
 
@@ -96,7 +96,7 @@ class Book(models.Model):
     # which is specific to users. If you want a Hook to
     # be triggered for all users, add '+' to built-in Hooks
     # or pass user_override=False for custom_hook events
-    user = models.ForeignKey('auth.User')
+    user = models.ForeignKey('auth.User', on_delete=models.CASCADE)
     # maybe user is off a related object, so try...
     # user = property(lambda self: self.intermediary.user)
 
diff --git a/devrequirements_2.0.txt b/devrequirements_2.0.txt
new file mode 100644
index 0000000..9d5d5b1
--- /dev/null
+++ b/devrequirements_2.0.txt
@@ -0,0 +1,3 @@
+-r devrequirements.txt
+django-contrib-comments>=1.8.0
+Django>=2.0,<2.1
diff --git a/rest_hooks/migrations/0001_initial.py b/rest_hooks/migrations/0001_initial.py
index 1e7db23..761c4f9 100644
--- a/rest_hooks/migrations/0001_initial.py
+++ b/rest_hooks/migrations/0001_initial.py
@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
+import django.db.models.deletion
 from django.db import models, migrations
 from django.conf import settings
 
@@ -20,7 +21,7 @@ class Migration(migrations.Migration):
                 ('updated', models.DateTimeField(auto_now=True)),
                 ('event', models.CharField(max_length=64, verbose_name='Event', db_index=True)),
                 ('target', models.URLField(max_length=255, verbose_name='Target URL')),
-                ('user', models.ForeignKey(related_name='hooks', to=settings.AUTH_USER_MODEL)),
+                ('user', models.ForeignKey(related_name='hooks', to=settings.AUTH_USER_MODEL, on_delete=django.db.models.deletion.CASCADE)),
             ],
             options={
             },
diff --git a/rest_hooks/models.py b/rest_hooks/models.py
index dca900c..c461b60 100644
--- a/rest_hooks/models.py
+++ b/rest_hooks/models.py
@@ -40,7 +40,7 @@ class AbstractHook(models.Model):
     created = models.DateTimeField(auto_now_add=True)
     updated = models.DateTimeField(auto_now=True)
 
-    user = models.ForeignKey(AUTH_USER_MODEL, related_name='%(class)ss')
+    user = models.ForeignKey(AUTH_USER_MODEL, related_name='%(class)ss', on_delete=models.CASCADE)
     event = models.CharField('Event', max_length=64, db_index=True)
     target = models.URLField('Target URL', max_length=255)