diff --git a/mistral/services/expiration_policy.py b/mistral/services/expiration_policy.py
index f9f919af8..b71d8c48c 100644
--- a/mistral/services/expiration_policy.py
+++ b/mistral/services/expiration_policy.py
@@ -19,6 +19,7 @@ from oslo_config import cfg
 from oslo_log import log as logging
 from oslo_service import periodic_task
 from oslo_service import threadgroup
+from oslo_utils import timeutils
 
 from mistral import context as auth_ctx
 from mistral.db.v2 import api as db_api
@@ -118,8 +119,7 @@ def run_execution_expiration_policy(self, ctx):
     LOG.debug("Starting expiration policy.")
 
     older_than = CONF.execution_expiration_policy.older_than
-    exp_time = (datetime.datetime.utcnow()
-                - datetime.timedelta(minutes=older_than))
+    exp_time = timeutils.utcnow() - datetime.timedelta(minutes=older_than)
 
     batch_size = CONF.execution_expiration_policy.batch_size
     max_executions = CONF.execution_expiration_policy.max_finished_executions
diff --git a/mistral/services/periodic.py b/mistral/services/periodic.py
index df53e478d..86b170c46 100644
--- a/mistral/services/periodic.py
+++ b/mistral/services/periodic.py
@@ -12,13 +12,13 @@
 #    See the License for the specific language governing permissions and
 #    limitations under the License.
 
-import datetime
 import json
 
 from oslo_config import cfg
 from oslo_log import log as logging
 from oslo_service import periodic_task
 from oslo_service import threadgroup
+from oslo_utils import timeutils
 
 from mistral import context as auth_ctx
 from mistral.db.v2 import api as db_api_v2
@@ -125,7 +125,7 @@ def advance_cron_trigger(t):
             # we use the max of the current time or the next scheduled time.
             next_time = triggers.get_next_execution_time(
                 t.pattern,
-                max(datetime.datetime.utcnow(), t.next_execution_time)
+                max(timeutils.utcnow(), t.next_execution_time)
             )
 
             # Update the cron trigger with next execution details
diff --git a/mistral/services/triggers.py b/mistral/services/triggers.py
index 08ed7d28f..8ee43ab3b 100644
--- a/mistral/services/triggers.py
+++ b/mistral/services/triggers.py
@@ -17,6 +17,7 @@ import datetime
 import json
 
 from oslo_log import log as logging
+from oslo_utils import timeutils
 
 from mistral.db.v2 import api as db_api
 from mistral.engine import utils as eng_utils
@@ -39,8 +40,7 @@ def get_next_execution_time(pattern, start_time):
 
 def get_next_cron_triggers():
     return db_api.get_next_cron_triggers(
-        datetime.datetime.utcnow() + datetime.timedelta(0, 2)
-    )
+        timeutils.utcnow() + datetime.timedelta(0, 2))
 
 
 def validate_cron_trigger_input(pattern, first_time, count):
@@ -50,7 +50,7 @@ def validate_cron_trigger_input(pattern, first_time, count):
         )
 
     if first_time:
-        valid_min_time = datetime.datetime.utcnow() + datetime.timedelta(0, 60)
+        valid_min_time = timeutils.utcnow() + datetime.timedelta(0, 60)
 
         if valid_min_time > first_time:
             raise exc.InvalidModelException(
@@ -74,7 +74,7 @@ def create_cron_trigger(name, workflow_name, workflow_input,
                         workflow_params=None, pattern=None, first_time=None,
                         count=None, start_time=None, workflow_id=None):
     if not start_time:
-        start_time = datetime.datetime.utcnow()
+        start_time = timeutils.utcnow()
 
     if isinstance(first_time, str):
         try:
diff --git a/mistral/tests/unit/api/test_auth.py b/mistral/tests/unit/api/test_auth.py
index b6dab0d6f..ba29615d3 100644
--- a/mistral/tests/unit/api/test_auth.py
+++ b/mistral/tests/unit/api/test_auth.py
@@ -11,6 +11,7 @@
 #    limitations under the License.
 
 import datetime
+
 from oslo_utils import timeutils
 from oslo_utils import uuidutils
 import pecan
@@ -36,7 +37,7 @@ PKI_TOKEN_VERIFIED = {
         'roles': [{'id': uuidutils.generate_uuid(dashed=False),
                    'name': 'admin'}],
         'expires_at': datetime.datetime.isoformat(
-            datetime.datetime.utcnow() + datetime.timedelta(seconds=60)
+            timeutils.utcnow() + datetime.timedelta(seconds=60)
         ),
         'project': {
             'domain': {'id': 'default', 'name': 'Default'},
diff --git a/mistral/tests/unit/api/v2/test_environment.py b/mistral/tests/unit/api/v2/test_environment.py
index 76e3c5de2..4fe121eef 100644
--- a/mistral/tests/unit/api/v2/test_environment.py
+++ b/mistral/tests/unit/api/v2/test_environment.py
@@ -17,6 +17,8 @@ import datetime
 import json
 from unittest import mock
 
+from oslo_utils import timeutils
+from oslo_utils import uuidutils
 import sqlalchemy as sa
 
 from mistral.api.controllers.v2 import resources
@@ -24,7 +26,6 @@ from mistral.db.v2 import api as db_api
 from mistral.db.v2.sqlalchemy import models as db
 from mistral import exceptions as exc
 from mistral.tests.unit.api import base
-from oslo_utils import uuidutils
 
 DATETIME_FORMAT = '%Y-%m-%d %H:%M:%S.%f'
 
@@ -67,8 +68,8 @@ ENVIRONMENT = {
     'variables': VARIABLES,
     'scope': 'private',
     'project_id': '<default-project>',
-    'created_at': str(datetime.datetime.utcnow()),
-    'updated_at': str(datetime.datetime.utcnow())
+    'created_at': str(timeutils.utcnow()),
+    'updated_at': str(timeutils.utcnow())
 }
 
 ENVIRONMENT_WITH_ILLEGAL_FIELD = {
diff --git a/mistral/tests/unit/engine/test_cron_trigger.py b/mistral/tests/unit/engine/test_cron_trigger.py
index ddac373d2..79587af97 100644
--- a/mistral/tests/unit/engine/test_cron_trigger.py
+++ b/mistral/tests/unit/engine/test_cron_trigger.py
@@ -15,6 +15,7 @@ import datetime
 from unittest import mock
 
 from oslo_config import cfg
+from oslo_utils import timeutils
 
 from mistral import context as auth_ctx
 from mistral.db.v2 import api as db_api
@@ -123,7 +124,7 @@ class ProcessCronTriggerTest(base.EngineTestCase):
 
         next_trigger = next_triggers[0]
         next_execution_time_before = next_trigger.next_execution_time
-        ts_before = datetime.datetime.utcnow()
+        ts_before = timeutils.utcnow()
 
         periodic.process_cron_triggers_v2(None, None)
         self._await(
@@ -157,7 +158,7 @@ class ProcessCronTriggerTest(base.EngineTestCase):
 
         # Make the first_time 1 sec later than current time, in order to make
         # it executed by next cron-trigger task.
-        first_time = datetime.datetime.utcnow() + datetime.timedelta(0, 1)
+        first_time = timeutils.utcnow() + datetime.timedelta(0, 1)
 
         # Creates a cron-trigger with pattern and first time, ensure the
         # cron-trigger can be executed more than once, and cron-trigger will
@@ -200,7 +201,7 @@ class ProcessCronTriggerTest(base.EngineTestCase):
     def test_validate_cron_trigger_input_first_time(self):
         cfg.CONF.set_default('auth_enable', False, group='pecan')
 
-        first_time = datetime.datetime.utcnow() + datetime.timedelta(0, 1)
+        first_time = timeutils.utcnow() + datetime.timedelta(0, 1)
 
         self.assertRaises(
             exc.InvalidModelException,
diff --git a/mistral/tests/unit/engine/test_default_engine.py b/mistral/tests/unit/engine/test_default_engine.py
index 6b933ab57..5c4e7923d 100644
--- a/mistral/tests/unit/engine/test_default_engine.py
+++ b/mistral/tests/unit/engine/test_default_engine.py
@@ -18,6 +18,7 @@ from unittest import mock
 
 from oslo_config import cfg
 from oslo_messaging.rpc import client as rpc_client
+from oslo_utils import timeutils
 from oslo_utils import uuidutils
 
 from mistral.db.v2 import api as db_api
@@ -74,8 +75,8 @@ ENVIRONMENT = {
         'key2': 123
     },
     'scope': 'private',
-    'created_at': str(datetime.datetime.utcnow()),
-    'updated_at': str(datetime.datetime.utcnow())
+    'created_at': str(timeutils.utcnow()),
+    'updated_at': str(timeutils.utcnow())
 }
 
 ENVIRONMENT_DB = models.Environment(
diff --git a/mistral/tests/unit/engine/test_task_defaults.py b/mistral/tests/unit/engine/test_task_defaults.py
index faaebfddf..01e700b41 100644
--- a/mistral/tests/unit/engine/test_task_defaults.py
+++ b/mistral/tests/unit/engine/test_task_defaults.py
@@ -12,10 +12,10 @@
 #    See the License for the specific language governing permissions and
 #    limitations under the License.
 
-import datetime as dt
 from unittest import mock
 
 from oslo_config import cfg
+from oslo_utils import timeutils
 import requests
 
 from mistral.db.v2 import api as db_api
@@ -186,7 +186,7 @@ class TaskDefaultsReverseWorkflowEngineTest(base.EngineTestCase):
 
         wf_service.create_workflows(wf_text)
 
-        time_before = dt.datetime.utcnow()
+        time_before = timeutils.utcnow()
 
         # Start workflow.
         wf_ex = self.engine.start_workflow('wf', task_name='task1')
@@ -195,7 +195,7 @@ class TaskDefaultsReverseWorkflowEngineTest(base.EngineTestCase):
 
         # Workflow must work at least 2 seconds (1+1).
         self.assertGreater(
-            (dt.datetime.utcnow() - time_before).total_seconds(),
+            (timeutils.utcnow() - time_before).total_seconds(),
             2
         )
 
diff --git a/mistral/tests/unit/scheduler/test_default_scheduler.py b/mistral/tests/unit/scheduler/test_default_scheduler.py
index 53ab398c6..bbce59dbc 100644
--- a/mistral/tests/unit/scheduler/test_default_scheduler.py
+++ b/mistral/tests/unit/scheduler/test_default_scheduler.py
@@ -12,14 +12,14 @@
 #    See the License for the specific language governing permissions and
 #    limitations under the License.
 
+import datetime
+from unittest import mock
+
 from eventlet import event
 from eventlet import semaphore
 from eventlet import timeout
-from unittest import mock
-
-import datetime
-
 from oslo_config import cfg
+from oslo_utils import timeutils
 
 from mistral.db.v2 import api as db_api
 from mistral.scheduler import base as scheduler_base
@@ -124,9 +124,7 @@ class DefaultSchedulerTest(base.DbTestCase):
 
         self.assertIsNotNone(captured_at)
         self.assertTrue(
-            datetime.datetime.utcnow() - captured_at <
-            datetime.timedelta(seconds=3)
-        )
+            timeutils.utcnow() - captured_at < datetime.timedelta(seconds=3))
 
         self._unlock_target_method()
         self._wait_target_method_end()
@@ -144,7 +142,7 @@ class DefaultSchedulerTest(base.DbTestCase):
         self.override_config('pickup_job_after', 1, 'scheduler')
 
         # 1. Create a scheduled job in Job Store.
-        execute_at = datetime.datetime.utcnow() + datetime.timedelta(seconds=1)
+        execute_at = timeutils.utcnow() + datetime.timedelta(seconds=1)
 
         db_api.create_scheduled_job({
             'run_after': 1,
@@ -176,17 +174,17 @@ class DefaultSchedulerTest(base.DbTestCase):
         # 1. Create a scheduled job in Job Store marked as captured in one
         #    second in the future. It can be captured again only after 3
         #    seconds after that according to the config option.
-        captured_at = datetime.datetime.utcnow() + datetime.timedelta(
+        captured_at = timeutils.utcnow() + datetime.timedelta(
             seconds=1
         )
 
-        before_ts = datetime.datetime.utcnow()
+        before_ts = timeutils.utcnow()
 
         db_api.create_scheduled_job({
             'run_after': 1,
             'func_name': TARGET_METHOD_PATH,
             'func_args': {'name': 'task', 'id': '321'},
-            'execute_at': datetime.datetime.utcnow(),
+            'execute_at': timeutils.utcnow(),
             'captured_at': captured_at,
             'auth_ctx': {}
         })
@@ -203,6 +201,4 @@ class DefaultSchedulerTest(base.DbTestCase):
 
         # At least 3 seconds should have passed.
         self.assertTrue(
-            datetime.datetime.utcnow() - before_ts >=
-            datetime.timedelta(seconds=3)
-        )
+            timeutils.utcnow() - before_ts >= datetime.timedelta(seconds=3))
diff --git a/mistral/tests/unit/services/test_expiration_policy.py b/mistral/tests/unit/services/test_expiration_policy.py
index ac0cc6599..199609e57 100644
--- a/mistral/tests/unit/services/test_expiration_policy.py
+++ b/mistral/tests/unit/services/test_expiration_policy.py
@@ -16,6 +16,9 @@
 
 import datetime
 
+from oslo_config import cfg
+from oslo_utils import timeutils
+
 from mistral import context as ctx
 from mistral.db.v2 import api as db_api
 from mistral.services import expiration_policy
@@ -23,7 +26,6 @@ from mistral.services.expiration_policy import ExecutionExpirationPolicy
 from mistral.tests.unit import base
 from mistral.tests.unit.base import get_context
 from mistral_lib import utils
-from oslo_config import cfg
 
 
 def _create_workflow_executions():
@@ -130,7 +132,7 @@ class ExpirationPolicyTest(base.DbTestCase):
 
         _create_workflow_executions()
 
-        now = datetime.datetime.utcnow()
+        now = timeutils.utcnow()
 
         # This execution has a parent wf and testing that we are
         # querying only for parent wfs.
@@ -171,7 +173,7 @@ class ExpirationPolicyTest(base.DbTestCase):
 
     def test_expiration_policy_for_executions_with_ignored_states(self):
         _create_workflow_executions()
-        now = datetime.datetime.utcnow()
+        now = timeutils.utcnow()
 
         _set_expiration_policy_config(
             evaluation_interval=1,
@@ -215,7 +217,7 @@ class ExpirationPolicyTest(base.DbTestCase):
         """
 
         _create_workflow_executions()
-        now = datetime.datetime.utcnow()
+        now = timeutils.utcnow()
 
         _set_expiration_policy_config(
             evaluation_interval=1,
@@ -240,7 +242,7 @@ class ExpirationPolicyTest(base.DbTestCase):
         """
 
         _create_workflow_executions()
-        now = datetime.datetime.utcnow()
+        now = timeutils.utcnow()
 
         _set_expiration_policy_config(
             evaluation_interval=1,
diff --git a/mistral/tests/unit/services/test_legacy_scheduler.py b/mistral/tests/unit/services/test_legacy_scheduler.py
index 47f54a9e4..810b2e597 100644
--- a/mistral/tests/unit/services/test_legacy_scheduler.py
+++ b/mistral/tests/unit/services/test_legacy_scheduler.py
@@ -20,6 +20,7 @@ from unittest import mock
 from eventlet import queue
 from eventlet import timeout
 from oslo_config import cfg
+from oslo_utils import timeutils
 
 from mistral import context as auth_context
 from mistral.db.v2 import api as db_api
@@ -39,7 +40,7 @@ DELAY = 1.5
 
 
 def get_time_delay(delay=DELAY * 2):
-    return datetime.datetime.utcnow() + datetime.timedelta(seconds=delay)
+    return timeutils.utcnow() + datetime.timedelta(seconds=delay)
 
 
 def target_method():
diff --git a/mistral/tests/unit/services/test_trigger_service.py b/mistral/tests/unit/services/test_trigger_service.py
index f7c6082f1..d024f7ba9 100644
--- a/mistral/tests/unit/services/test_trigger_service.py
+++ b/mistral/tests/unit/services/test_trigger_service.py
@@ -17,6 +17,7 @@ import eventlet
 from unittest import mock
 
 from oslo_config import cfg
+from oslo_utils import timeutils
 
 from mistral import exceptions as exc
 from mistral.rpc import clients as rpc
@@ -296,7 +297,7 @@ class TriggerServiceV2Test(base.DbTestCase):
             self.wf.name,
             {},
             pattern='*/3 * * * *',
-            start_time=datetime.datetime.utcnow() + datetime.timedelta(0, 50)
+            start_time=timeutils.utcnow() + datetime.timedelta(0, 50)
         )
 
         trigger_names = [t.name for t in t_s.get_next_cron_triggers()]
diff --git a/mistral/utils/profiler.py b/mistral/utils/profiler.py
index 015f33bae..4aee2fe6c 100644
--- a/mistral/utils/profiler.py
+++ b/mistral/utils/profiler.py
@@ -18,6 +18,7 @@ import json
 
 from oslo_config import cfg
 from oslo_log import log as logging
+from oslo_utils import timeutils
 import osprofiler.profiler
 import osprofiler.web
 
@@ -39,17 +40,14 @@ def log_to_file(info, context=None):
     th_local_name = '_profiler_trace_%s_start_time_' % info['trace_id']
 
     if info['name'].endswith('-start'):
-        utils.set_thread_local(
-            th_local_name,
-            datetime.datetime.utcnow()
-        )
+        utils.set_thread_local(th_local_name, timeutils.utcnow())
 
         # Insert a blank sequence for a trace start.
         attrs.insert(1, ' ' * 8)
 
     if info['name'].endswith('-stop'):
         delta = (
-            datetime.datetime.utcnow() - utils.get_thread_local(th_local_name)
+            timeutils.utcnow() - utils.get_thread_local(th_local_name)
         ).total_seconds()
 
         utils.set_thread_local(th_local_name, None)
diff --git a/requirements.txt b/requirements.txt
index 63c74c327..75edb689c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ oslo.i18n>=3.15.3 # Apache-2.0
 oslo.messaging>=14.1.0 # Apache-2.0
 oslo.middleware>=3.31.0 # Apache-2.0
 oslo.policy>=3.6.0 # Apache-2.0
-oslo.utils>=4.0.0 # Apache-2.0
+oslo.utils>=7.0.0 # Apache-2.0
 oslo.log>=3.36.0 # Apache-2.0
 oslo.serialization>=2.21.1 # Apache-2.0
 oslo.service>=2.1.0 # Apache-2.0