diff --git a/scrapy/extensions/feedexport.py b/scrapy/extensions/feedexport.py
index b2f7267a2..39d05de49 100644
--- a/scrapy/extensions/feedexport.py
+++ b/scrapy/extensions/feedexport.py
@@ -98,7 +98,8 @@ class S3FeedStorage(BlockingFeedStorage):
         # without using from_crawler)
         no_defaults = access_key is None and secret_key is None
         if no_defaults:
-            from scrapy.conf import settings
+            from scrapy.utils.project import get_project_settings
+            settings = get_project_settings()
             if 'AWS_ACCESS_KEY_ID' in settings or 'AWS_SECRET_ACCESS_KEY' in settings:
                 import warnings
                 from scrapy.exceptions import ScrapyDeprecationWarning
diff --git a/tests/test_feedexport.py b/tests/test_feedexport.py
index eef0384cf..14bb72170 100644
--- a/tests/test_feedexport.py
+++ b/tests/test_feedexport.py
@@ -26,6 +26,7 @@ from scrapy.extensions.feedexport import (
     BlockingFeedStorage)
 from scrapy.utils.test import assert_aws_environ, get_s3_content_and_delete, get_crawler
 from scrapy.utils.python import to_native_str
+from scrapy.utils.project import get_project_settings
 
 
 class FileFeedStorageTest(unittest.TestCase):
@@ -134,8 +135,10 @@ class BlockingFeedStorageTest(unittest.TestCase):
 
 class S3FeedStorageTest(unittest.TestCase):
 
-    @mock.patch('scrapy.conf.settings', new={'AWS_ACCESS_KEY_ID': 'conf_key',
-                'AWS_SECRET_ACCESS_KEY': 'conf_secret'}, create=True)
+    @mock.patch('scrapy.utils.project.get_project_settings',
+                new=mock.MagicMock(return_value={'AWS_ACCESS_KEY_ID': 'conf_key',
+                                                 'AWS_SECRET_ACCESS_KEY': 'conf_secret'}),
+                create=True)
     def test_parse_credentials(self):
         try:
             import boto