diff --git a/quetz/tests/test_cli.py b/quetz/tests/test_cli.py
index 5445f7c6..f4df823c 100644
--- a/quetz/tests/test_cli.py
+++ b/quetz/tests/test_cli.py
@@ -7,12 +7,12 @@
 from unittest import mock
 from unittest.mock import MagicMock
 
+import pytest
 import sqlalchemy as sa
 from alembic.script import ScriptDirectory
 from pytest_mock.plugin import MockerFixture
 from typer.testing import CliRunner
 
-import pytest
 from quetz import cli
 from quetz.config import Config
 from quetz.db_models import Base, Identity, User
diff --git a/quetz/tests/test_config.py b/quetz/tests/test_config.py
index 1f861c98..d6c72ad0 100644
--- a/quetz/tests/test_config.py
+++ b/quetz/tests/test_config.py
@@ -3,6 +3,7 @@
 import tempfile
 
 import pytest
+
 from quetz.config import Config, ConfigEntry, ConfigSection, configure_logger
 from quetz.dao import Dao
 from quetz.errors import ConfigError
diff --git a/quetz/tests/test_pkg_stores.py b/quetz/tests/test_pkg_stores.py
index 48d41955..d805c551 100644
--- a/quetz/tests/test_pkg_stores.py
+++ b/quetz/tests/test_pkg_stores.py
@@ -8,6 +8,7 @@
 from pathlib import Path
 
 import pytest
+
 from quetz.pkgstores import (
     AzureBlobStore,
     GoogleCloudStorageStore,