diff --git a/deepaas/tests/base.py b/deepaas/tests/base.py
deleted file mode 100644
index 47a42c48..00000000
--- a/deepaas/tests/base.py
+++ /dev/null
@@ -1,80 +0,0 @@
-# -*- coding: utf-8 -*-
-
-# Copyright 2018 Spanish National Research Council (CSIC)
-#
-# Licensed under the Apache License, Version 2.0 (the "License"); you may
-# not use this file except in compliance with the License. You may obtain
-# a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-# License for the specific language governing permissions and limitations
-# under the License.
-
-import os
-
-import aiohttp.test_utils
-from aiohttp import web
-import fixtures
-from oslo_config import cfg
-from oslo_config import fixture as config_fixture
-from oslo_log import log as logging
-import testtools
-
-CONF = cfg.CONF
-logging.register_options(CONF)
-
-
-_TRUE_VALUES = ("True", "true", "1", "yes")
-
-
-class TestCase(testtools.TestCase, aiohttp.test_utils.AioHTTPTestCase):
-    """Base unit test class."""
-
-    def get_application(self):
-        app = web.Application()
-        app.middlewares.append(web.normalize_path_middleware())
-
-        return app
-
-    def setUp(self):
-        """Run before each test method to initialize test environment."""
-
-        super(TestCase, self).setUp()
-
-        test_timeout = os.environ.get("TESTR_TEST_TIMEOUT", 0)
-        try:
-            test_timeout = int(test_timeout)
-        except ValueError:
-            # If timeout value is invalid do not set a timeout.
-            test_timeout = 0
-        if test_timeout > 0:
-            self.useFixture(fixtures.Timeout(test_timeout, gentle=True))
-
-        self.useFixture(config_fixture.Config(CONF))
-
-        if os.environ.get("TESTR_STDOUT_CAPTURE") in _TRUE_VALUES:
-            stdout = self.useFixture(fixtures.StringStream("stdout")).stream
-            self.useFixture(fixtures.MonkeyPatch("sys.stdout", stdout))
-        if os.environ.get("TESTR_STDERR_CAPTURE") in _TRUE_VALUES:
-            stderr = self.useFixture(fixtures.StringStream("stderr")).stream
-            self.useFixture(fixtures.MonkeyPatch("sys.stderr", stderr))
-
-    async def asyncSetUp(self):
-        """Run before each test method to initialize test environment."""
-
-        await super(TestCase, self).asyncSetUp()
-        self.assertEqual(self.app.debug, True)
-
-    def flags(self, **kw):
-        """Override flag variables for a test."""
-        group = kw.pop("group", None)
-        for k, v in kw.items():
-            CONF.set_override(k, v, group)
-
-    def runTest(self):  # noqa(N802)
-        """This is due to https://github.com/pytest-dev/pytest/issues/12263"""
-        pass
diff --git a/pyproject.toml b/pyproject.toml
index 12547781..ef290b52 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -67,10 +67,8 @@ tox = "^4.15.1"
 pytest = "^8.2.2"
 pytest-aiohttp = "^1.0.5"
 pytest-cov = "^5.0.0"
-fixtures = "^4.1.0"
 reno = "^4.1.0"
 mock = "^5.1.0"
-testtools = "^2.7.1"
 setuptools = "^70.0.0"
 pytest-asyncio = "^0.23.7"