diff --git a/django_enumfield/enum.py b/django_enumfield/enum.py
index 2a75a88..4724b39 100644
--- a/django_enumfield/enum.py
+++ b/django_enumfield/enum.py
@@ -1,7 +1,5 @@
 import difflib
 
-import six
-
 from .item import Item
 
 
@@ -73,7 +71,7 @@ def from_value(self, value):
             raise ValueError("%r is not a valid value for enum %s" % (value, self.name))
 
     def from_slug(self, slug):
-        if not isinstance(slug, six.string_types):
+        if not isinstance(slug, str):
             raise TypeError("item slug should be a str, not %r" % type(slug))
 
         try:
diff --git a/django_enumfield/item.py b/django_enumfield/item.py
index e11bb75..8d37bad 100644
--- a/django_enumfield/item.py
+++ b/django_enumfield/item.py
@@ -1,4 +1,3 @@
-import six
 import functools
 
 from .utils import is_lazy_translation
@@ -34,7 +33,7 @@ def __init__(self, value, slug, display=None):
 
         if (
             display is not None
-            and not isinstance(display, six.string_types)
+            and not isinstance(display, str)
             and not is_lazy_translation(display)
         ):
             raise TypeError(
@@ -59,11 +58,11 @@ def __eq__(self, other):
         if isinstance(other, Item):
             return self.value == other.value
 
-        if isinstance(other, six.integer_types + six.string_types):
+        if isinstance(other, (int, str)):
             try:
                 return self.value == int(other)
             except ValueError:
-                return six.text_type(self.slug) == six.text_type(other)
+                return str(self.slug) == str(other)
 
         return False
 
diff --git a/django_enumfield/utils.py b/django_enumfield/utils.py
index 1146eec..031aba2 100644
--- a/django_enumfield/utils.py
+++ b/django_enumfield/utils.py
@@ -1,5 +1,3 @@
-import six
-
 from django.http import Http404
 from django.utils.functional import Promise
 
@@ -42,4 +40,4 @@ def is_lazy_translation(obj):
         return False
 
     resultclasses = obj.__reduce__()[1][3:]
-    return any(issubclass(x, six.string_types) for x in resultclasses)
+    return any(issubclass(x, str) for x in resultclasses)
diff --git a/tox.ini b/tox.ini
index a22cabf..280864e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -6,7 +6,6 @@ commands =
     coverage erase
     coverage run --parallel-mode --branch --source ./django_enumfield runtests.py
 deps =
-    six
     coverage
     django22: django==2.2
     django32: django==3.2