diff --git a/rest_framework/compat.py b/rest_framework/compat.py
index 1d34828bd..061e7a4e9 100644
--- a/rest_framework/compat.py
+++ b/rest_framework/compat.py
@@ -12,10 +12,10 @@ from django.views.generic import View
 
 try:
     # Python 3
-    from collections.abc import Mapping   # noqa
+    from collections.abc import Mapping, MutableMapping   # noqa
 except ImportError:
     # Python 2.7
-    from collections import Mapping   # noqa
+    from collections import Mapping, MutableMapping   # noqa
 
 try:
     # Python 3
diff --git a/rest_framework/utils/serializer_helpers.py b/rest_framework/utils/serializer_helpers.py
index 6b662a66c..c24e51d09 100644
--- a/rest_framework/utils/serializer_helpers.py
+++ b/rest_framework/utils/serializer_helpers.py
@@ -1,11 +1,10 @@
 from __future__ import unicode_literals
 
-import collections
 from collections import OrderedDict
 
 from django.utils.encoding import force_text
 
-from rest_framework.compat import unicode_to_repr
+from rest_framework.compat import MutableMapping, unicode_to_repr
 from rest_framework.utils import json
 
 
@@ -130,7 +129,7 @@ class NestedBoundField(BoundField):
         return self.__class__(self._field, values, self.errors, self._prefix)
 
 
-class BindingDict(collections.MutableMapping):
+class BindingDict(MutableMapping):
     """
     This dict-like object is used to store fields on a serializer.