diff --git a/swh/objstorage/backends/libcloud.py b/swh/objstorage/backends/libcloud.py
--- a/swh/objstorage/backends/libcloud.py
+++ b/swh/objstorage/backends/libcloud.py
@@ -4,7 +4,9 @@
 # See top-level LICENSE file for more information
 
 import abc
-import collections
+from collections import OrderedDict
+from collections.abc import Iterator
+
 from typing import Optional
 from urllib.parse import urlencode
 
@@ -29,7 +31,7 @@
         This is required to properly compute the request signature, see
         https://docs.aws.amazon.com/AmazonS3/latest/dev/RESTAuthentication.html#ConstructingTheCanonicalizedResourceElement
         """  # noqa
-        return urlencode(collections.OrderedDict(sorted(params.items())))
+        return urlencode(OrderedDict(sorted(params.items())))
 
     libcloud.storage.drivers.s3.urlencode = s3_urlencode
 
@@ -229,7 +231,7 @@
         """
         object_path = self._object_path(obj_id)
 
-        if not isinstance(content, collections.Iterator):
+        if not isinstance(content, Iterator):
             content = (content,)
         self.driver.upload_object_via_stream(
             self._compressor(content), self.container, object_path
diff --git a/swh/objstorage/backends/pathslicing.py b/swh/objstorage/backends/pathslicing.py
--- a/swh/objstorage/backends/pathslicing.py
+++ b/swh/objstorage/backends/pathslicing.py
@@ -6,7 +6,7 @@
 import os
 import tempfile
 import random
-import collections
+from collections.abc import Iterator
 from itertools import islice
 
 from contextlib import contextmanager
@@ -245,7 +245,7 @@
             return obj_id
 
         hex_obj_id = hashutil.hash_to_hex(obj_id)
-        if not isinstance(content, collections.Iterator):
+        if not isinstance(content, Iterator):
             content = [content]
         compressor = compressors[self.compression]()
         with _write_obj_file(hex_obj_id, self) as f:
diff --git a/swh/objstorage/tests/objstorage_testing.py b/swh/objstorage/tests/objstorage_testing.py
--- a/swh/objstorage/tests/objstorage_testing.py
+++ b/swh/objstorage/tests/objstorage_testing.py
@@ -4,7 +4,7 @@
 # See top-level LICENSE file for more information
 
 import time
-import collections
+from collections.abc import Iterator
 
 from swh.objstorage import exc
 from swh.objstorage.objstorage import compute_hash
@@ -165,7 +165,7 @@
             r = self.storage.get_stream(obj_id, chunk_size=1)
         except NotImplementedError:
             return
-        self.assertTrue(isinstance(r, collections.Iterator))
+        self.assertTrue(isinstance(r, Iterator))
         r = list(r)
         self.assertEqual(b"".join(r), content)
 
diff --git a/swh/objstorage/tests/test_objstorage_random_generator.py b/swh/objstorage/tests/test_objstorage_random_generator.py
--- a/swh/objstorage/tests/test_objstorage_random_generator.py
+++ b/swh/objstorage/tests/test_objstorage_random_generator.py
@@ -3,7 +3,7 @@
 # License: GNU General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
-from collections import Iterator
+from collections.abc import Iterator
 from swh.objstorage.factory import get_objstorage