diff --git a/whitebox/core/manager.py b/whitebox/core/manager.py
index 35ec4de..33db77e 100644
--- a/whitebox/core/manager.py
+++ b/whitebox/core/manager.py
@@ -24,11 +24,10 @@
 from functools import lru_cache
 import datetime
 
-import pytz
 
 
 def now():
-    return datetime.datetime.utcnow().replace(tzinfo=pytz.utc)
+    return datetime.datetime.now(datetime.timezone.utc)
 
 
 class Task_Manager:
diff --git a/whitebox/cron_tasks/monitoring_alerts.py b/whitebox/cron_tasks/monitoring_alerts.py
index 286f3c0..bb02f90 100644
--- a/whitebox/cron_tasks/monitoring_alerts.py
+++ b/whitebox/cron_tasks/monitoring_alerts.py
@@ -1,4 +1,4 @@
-from datetime import datetime
+from datetime import datetime, timezone
 import time
 from sqlalchemy import create_engine
 from sqlalchemy.orm import sessionmaker, Session
@@ -54,7 +54,7 @@ async def run_create_performance_metric_alert_pipeline(
         new_alert = entities.Alert(
             model_id=model.id,
             model_monitor_id=monitor.id,
-            timestamp=str(datetime.utcnow()),
+            timestamp=str(datetime.now(timezone.utc)),
             description=f"{monitor.metric} fell below the threshold of {monitor.lower_threshold} at value {metric_value}.",
         )
         crud.alerts.create(db, obj_in=new_alert)
@@ -88,7 +88,7 @@ async def run_create_drift_alert_pipeline(model: Model, monitor: ModelMonitor):
         new_alert = entities.Alert(
             model_id=model.id,
             model_monitor_id=monitor.id,
-            timestamp=str(datetime.utcnow()),
+            timestamp=str(datetime.now(timezone.utc)),
             description=f'{monitor.metric.capitalize().replace("_", " ")} found in "{monitor.feature}" feature.',
         )
         crud.alerts.create(db, obj_in=new_alert)
diff --git a/whitebox/cron_tasks/monitoring_metrics.py b/whitebox/cron_tasks/monitoring_metrics.py
index cbc112b..1dfae43 100644
--- a/whitebox/cron_tasks/monitoring_metrics.py
+++ b/whitebox/cron_tasks/monitoring_metrics.py
@@ -1,4 +1,4 @@
-from datetime import datetime
+from datetime import datetime, timezone
 import pandas as pd
 import time
 from sqlalchemy import create_engine
@@ -260,7 +260,7 @@ async def run_calculate_metrics_pipeline():
             last_report_time = (
                 last_report.timestamp
                 if last_report
-                else round_timestamp(datetime.utcnow(), "1D")
+                else round_timestamp(datetime.now(timezone.utc), "1D")
             )
 
             unused_inference_rows_in_db = await get_unused_model_inference_rows(
diff --git a/whitebox/crud/base.py b/whitebox/crud/base.py
index f76d8c1..9bf0b58 100644
--- a/whitebox/crud/base.py
+++ b/whitebox/crud/base.py
@@ -34,7 +34,7 @@ def get_first_by_filter(self, db: Session, **kwargs: Any) -> Optional[ModelType]
         return db.query(self.model).filter_by(**kwargs).first()
 
     def create(self, db: Session, *, obj_in: CreateSchemaType) -> ModelType:
-        date_now = datetime.datetime.utcnow()
+        date_now = datetime.datetime.now(datetime.timezone.utc)
         obj_in_data = jsonable_encoder(obj_in)
         db_obj = self.model(**obj_in_data, created_at=date_now, updated_at=date_now)
         db.add(db_obj)
@@ -45,7 +45,7 @@ def create(self, db: Session, *, obj_in: CreateSchemaType) -> ModelType:
     def create_many(
         self, db: Session, *, obj_list: List[CreateSchemaType]
     ) -> List[ModelType]:
-        date_now = datetime.datetime.utcnow()
+        date_now = datetime.datetime.now(datetime.timezone.utc)
         obj_list_in_data = jsonable_encoder(obj_list)
         db_obj_list = list(
             map(
@@ -66,7 +66,7 @@ def update(
         db_obj: ModelType,
         obj_in: Union[UpdateSchemaType, Dict[str, Any]]
     ) -> ModelType:
-        date_now = datetime.datetime.utcnow()
+        date_now = datetime.datetime.now(datetime.timezone.utc)
         obj_data = jsonable_encoder(db_obj)
         if isinstance(obj_in, dict):
             update_data = obj_in
diff --git a/whitebox/schemas/task.py b/whitebox/schemas/task.py
index 8ca74f4..1c937c9 100644
--- a/whitebox/schemas/task.py
+++ b/whitebox/schemas/task.py
@@ -6,11 +6,10 @@
 from uuid import UUID, uuid4
 
 import datetime
-import pytz
 
 
 def now():
-    return datetime.datetime.utcnow().replace(tzinfo=pytz.utc)
+    return datetime.datetime.now(datetime.timezone.utc)
 
 
 TaskStatus = Literal[