diff --git a/constance/backends/database/__init__.py b/constance/backends/database/__init__.py
index aa1ceaa..4cd6a3b 100644
--- a/constance/backends/database/__init__.py
+++ b/constance/backends/database/__init__.py
@@ -1,6 +1,12 @@
 from django.core.exceptions import ImproperlyConfigured
 from django.db.models.signals import post_save
-from django.core.cache import get_cache
+
+try:
+    from django.core.cache import get_cache
+except ImportError:
+    from django.core.cache import caches
+    def get_cache(name):
+        return caches[name]
 
 try:
     from django.core.cache.backends.locmem import LocMemCache
diff --git a/constance/models.py b/constance/models.py
index b1183e1..f137982 100644
--- a/constance/models.py
+++ b/constance/models.py
@@ -2,7 +2,7 @@ from django.db.models import signals
 from django import VERSION
 
 
-def create_perm(app, created_models, verbosity, db, **kwargs):
+def create_perm(*args, **kwargs):
     """
     Creates a fake content type and permission
     to be able to check for permissions
@@ -23,4 +23,7 @@ def create_perm(app, created_models, verbosity, db, **kwargs):
             codename='change_config')
 
 
-signals.post_syncdb.connect(create_perm, dispatch_uid="constance.create_perm")
+if hasattr(signals, 'post_syncdb'):
+    signals.post_syncdb.connect(create_perm, dispatch_uid="constance.create_perm")
+else:
+    signals.post_migrate.connect(create_perm, dispatch_uid="constance.create_perm")
diff --git a/constance/templates/admin/constance/change_list.html b/constance/templates/admin/constance/change_list.html
index 27e792c..7751b94 100644
--- a/constance/templates/admin/constance/change_list.html
+++ b/constance/templates/admin/constance/change_list.html
@@ -1,6 +1,5 @@
 {% extends "admin/base_site.html" %}
 {% load admin_static admin_list i18n %}
-{% load url from future %}
 
 
 {% block extrastyle %}
diff --git a/constance/utils.py b/constance/utils.py
index 96fc572..572d84a 100644
--- a/constance/utils.py
+++ b/constance/utils.py
@@ -1,4 +1,7 @@
-from django.utils.importlib import import_module
+try:
+    from importlib import import_module
+except ImportError:
+    from django.utils.importlib import import_module
 
 
 def import_module_attr(path):
diff --git a/tox.ini b/tox.ini
index e68f884..0841688 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,8 +3,8 @@ envlist =
     py26-django-14,
     py27-django-14,
     {py26,py27,py32,py33,py34,pypy}-django-{15,16},
-    {py27,py32,py33,py34,pypy}-django-17
-    {py27,py33,py34,pypy}-django-master
+    {py27,py32,py33,py34,pypy}-django-{17,18}
+    {py27,py34,py35,pypy}-django-master
 
 [testenv]
 basepython =
@@ -13,6 +13,7 @@ basepython =
     py32: python3.2
     py33: python3.3
     py34: python3.4
+    py35: python3.5
     pypy: pypy
 deps =
     redis
@@ -24,6 +25,7 @@ deps =
     django-15: Django>=1.5,<1.6
     django-16: Django>=1.6,<1.7
     django-17: Django>=1.7,<1.8
+    django-18: Django>=1.8,<1.9
     django-master: https://github.com/django/django/archive/master.tar.gz
 usedevelop = true
 commands =