Upstream-Status: Submitted [https://github.com/rsinger86/drf-flex-fields/pull/146]

diff --git a/rest_flex_fields/filter_backends.py b/rest_flex_fields/filter_backends.py
index 5eba44d..1f6461c 100644
--- a/rest_flex_fields/filter_backends.py
+++ b/rest_flex_fields/filter_backends.py
@@ -4,7 +4,16 @@ from django.core.exceptions import FieldDoesNotExist
 from django.db import models
 from django.db.models import QuerySet
-from rest_framework.compat import coreapi, coreschema
+try:
+    from rest_framework.compat import coreapi, coreschema
+except ImportError:
+    try:
+        import coreapi
+        import coreschema
+    except ImportError:
+        coreapi = None
+        coreschema = None
+
 from rest_framework.filters import BaseFilterBackend
 from rest_framework.request import Request
 from rest_framework.viewsets import GenericViewSet