diff --git a/CHANGELOG.md b/CHANGELOG.md
index bd067e2..5cd7ad8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# 0.4.0
+* Add Django 2.0 support #23
+* Drop support for Django 1.8
+
 ## 0.3.3
 * Fix multipart form data (@ron8mcr)
 
diff --git a/README.md b/README.md
index ebdc728..2e7e2c4 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ Requirements
 ============
 
 - Python (2.7, 3.5, 3.6)
-- Django (1.8, 1.9, 1.10, 1.11)
+- Django (1.9, 1.10, 1.11, 2.0)
 - djangorestframework (3.5+)
 
 Installation
diff --git a/drf_writable_nested/__init__.py b/drf_writable_nested/__init__.py
index 27a2ec6..b6fdd69 100644
--- a/drf_writable_nested/__init__.py
+++ b/drf_writable_nested/__init__.py
@@ -1,5 +1,5 @@
 __title__ = 'DRF writable nested'
-__version__ = '0.3.3'
+__version__ = '0.4.0'
 __author__ = 'beda.software'
 __license__ = 'BSD 2-Clause'
 __copyright__ = 'Copyright 2014-2018 beda.software'
diff --git a/drf_writable_nested/mixins.py b/drf_writable_nested/mixins.py
index 64f3b75..8419b02 100644
--- a/drf_writable_nested/mixins.py
+++ b/drf_writable_nested/mixins.py
@@ -1,5 +1,4 @@
 # -*- coding: utf-8 -*-
-import uuid
 from collections import OrderedDict, defaultdict
 
 from django.contrib.contenttypes.fields import GenericRelation
@@ -264,7 +263,7 @@ def delete_reverse_relations_if_need(self, instance, reverse_relations):
             if related_field.many_to_many and \
                     not isinstance(related_field, ForeignObjectRel):
                 related_field_lookup = {
-                    related_field.rel.name: instance,
+                    related_field.remote_field.name: instance,
                 }
             elif isinstance(related_field, GenericRelation):
                 related_field_lookup = \
diff --git a/tox.ini b/tox.ini
index ac6763c..ccbef87 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,14 +3,16 @@ addopts=--tb=short
 
 [tox]
 envlist =
-    {py27,py35}-dj{18,19}-drf{35,36}
-    {py27,py35,py36}-dj{110,111}-drf{35,36,37}
+    py{27,35}-dj{19}-drf{35,36}
+    py{27,35,36}-dj{110,111}-drf{35,36,37}
+    py{36}-dj{20}-drf{37}
+
 [travis:env]
 DJANGO =
-    1.8: dj18
     1.9: dj19
     1.10: dj110
     1.11: dj111
+    2.0: dj20
 
 [testenv]
 commands = ./py.test --cov drf_writable_nested
@@ -18,10 +20,10 @@ setenv =
     PYTHONDONTWRITEBYTECODE=1
     PYTHONWARNINGS=once
 deps =
-    dj18: Django>=1.8,<1.9
     dj19: Django>=1.9,<1.10
     dj110: Django>=1.10,<1.11
     dj111: Django>=1.11a1,<2.0
+    dj20: Django>=2.0,<2.1
     drf35: djangorestframework>=3.5,<3.6
     drf36: djangorestframework>=3.6.0,<3.7
     drf37: djangorestframework>=3.7.0,<3.8