diff --git a/jsonfield_compat/compat.py b/jsonfield_compat/compat.py
index 8accd54..0caf96d 100644
--- a/jsonfield_compat/compat.py
+++ b/jsonfield_compat/compat.py
@@ -1,4 +1,5 @@
 import json
+import six
 from functools import partial
 
 try:
@@ -9,7 +10,6 @@
     NativeJSONField = object
 
 from django.conf import settings
-from django.utils import six
 from django.utils.module_loading import import_string
 from psycopg2.extras import Json
 
diff --git a/requirements.txt b/requirements.txt
index 38e749d..ca2077c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,3 @@
-django-jsonfield==1.0.1
+django-jsonfield==1.4.0
 psycopg2>=2.5.4
+six==1.13.0
\ No newline at end of file