diff --git a/requirements-swh-journal.txt b/requirements-swh-journal.txt
--- a/requirements-swh-journal.txt
+++ b/requirements-swh-journal.txt
@@ -1 +1 @@
-swh.journal >= 0.0.17
+swh.journal >= 0.0.30
diff --git a/swh/storage/tests/conftest.py b/swh/storage/tests/conftest.py
--- a/swh/storage/tests/conftest.py
+++ b/swh/storage/tests/conftest.py
@@ -7,7 +7,6 @@
 import pytest
 
 from typing import Union
-from unittest.mock import patch
 
 from pytest_postgresql import factories
 from pytest_postgresql.janitor import DatabaseJanitor, psycopg2, Version
@@ -31,7 +30,6 @@
     SkippedContent,
     Snapshot,
 )
-from swh.journal.writer.inmemory import InMemoryJournalWriter
 
 
 OBJECT_FACTORY = {
@@ -73,29 +71,9 @@
     }
 
 
-class BWCompatInMemoryJournalWriter(InMemoryJournalWriter):
-    """InMemoryJournalWriter that enforces conversion of objects to model entities
-
-    This is required until swh.journal 0.0.30 is available
-    """
-
-    def write_addition(self, object_type, object_):
-        if isinstance(object_, dict):
-            object_ = OBJECT_FACTORY[object_type](object_)
-        self.objects.append((object_type, object_))
-
-    write_update = write_addition
-
-
 @pytest.fixture
 def swh_storage(swh_storage_backend_config):
-    storage_config = {"cls": "validate", "storage": swh_storage_backend_config}
-    with patch(
-        "swh.journal.writer.inmemory.InMemoryJournalWriter",
-        return_value=BWCompatInMemoryJournalWriter(),
-    ):
-        storage = swh.storage.get_storage(**storage_config)
-    return storage
+    return swh.storage.get_storage(cls="validate", storage=swh_storage_backend_config)
 
 
 @pytest.fixture
diff --git a/swh/storage/tests/test_api_client.py b/swh/storage/tests/test_api_client.py
--- a/swh/storage/tests/test_api_client.py
+++ b/swh/storage/tests/test_api_client.py
@@ -12,7 +12,6 @@
 from swh.storage import get_storage
 from swh.storage.tests.test_storage import TestStorageGeneratedData  # noqa
 from swh.storage.tests.test_storage import TestStorage as _TestStorage
-from swh.storage.tests.conftest import BWCompatInMemoryJournalWriter
 
 # tests are executed using imported classes (TestStorage and
 # TestStorageGeneratedData) using overloaded swh_storage fixture
@@ -21,15 +20,9 @@
 
 @pytest.fixture
 def app_server():
-    storage_config = {
-        "cls": "memory",
-        "journal_writer": {"cls": "memory",},
-    }
-    with patch(
-        "swh.journal.writer.inmemory.InMemoryJournalWriter",
-        return_value=BWCompatInMemoryJournalWriter(),
-    ):
-        server.storage = swh.storage.get_storage(**storage_config)
+    server.storage = swh.storage.get_storage(
+        cls="memory", journal_writer={"cls": "memory"}
+    )
     yield server
 
 
diff --git a/swh/storage/tests/test_api_client_dicts.py b/swh/storage/tests/test_api_client_dicts.py
--- a/swh/storage/tests/test_api_client_dicts.py
+++ b/swh/storage/tests/test_api_client_dicts.py
@@ -12,7 +12,6 @@
 import swh.storage.storage
 from swh.storage.tests.test_storage import TestStorageGeneratedData  # noqa
 from swh.storage.tests.test_storage import TestStorage as _TestStorage
-from swh.storage.tests.conftest import BWCompatInMemoryJournalWriter
 from swh.storage.tests.test_api_client import swh_storage  # noqa
 
 # tests are executed using imported classes (TestStorage and
@@ -26,11 +25,7 @@
         "cls": "validate",
         "storage": {"cls": "memory", "journal_writer": {"cls": "memory",},},
     }
-    with patch(
-        "swh.journal.writer.inmemory.InMemoryJournalWriter",
-        return_value=BWCompatInMemoryJournalWriter(),
-    ):
-        server.storage = swh.storage.get_storage(**storage_config)
+    server.storage = swh.storage.get_storage(**storage_config)
     yield server