diff --git a/app/support/common/logger.py b/app/support/common/logger.py
index e3bd07c..7e3eaba 100644
--- a/app/support/common/logger.py
+++ b/app/support/common/logger.py
@@ -1,6 +1,6 @@
 import logging
 import os
-from typing import List, Union
+from typing import List
 from .misc import ensure_directories_present
 
 
@@ -97,7 +97,7 @@ def _get_file_handler(
 def _get_handlers(create_console_stream_handler: bool = True,
                   create_console_file_handler: bool = True,
                   create_debug_file_handler: bool = True
-                  ) -> List[Union[None, logging.Handler]]:
+                  ) -> List[None | logging.Handler]:
     console_stream_handler, console_file_handler, debug_file_handler = None, None, None
     if create_console_stream_handler or create_console_file_handler:
         console_output_formatter = _get_console_output_formatter()
@@ -126,11 +126,7 @@ def _get_handlers(create_console_stream_handler: bool = True,
 
 
 def _add_handlers(
-        handlers: Union[
-            None,
-            List[logging.FileHandler],
-            List[logging.StreamHandler]
-            ],
+        handlers: None | List[logging.FileHandler] | List[logging.StreamHandler],
         logger: logging.Logger
         ):
     for handler in handlers:
diff --git a/app/support/data_access_layer/records/abstract_record.py b/app/support/data_access_layer/records/abstract_record.py
index 76a6cc9..cccb5e8 100644
--- a/app/support/data_access_layer/records/abstract_record.py
+++ b/app/support/data_access_layer/records/abstract_record.py
@@ -1,4 +1,4 @@
-from typing import Dict, Union
+from typing import Dict
 
 from pydantic import ValidationError, BaseModel
 
@@ -33,7 +33,7 @@ def validate_record(self, record: Dict) -> bool:
             logger.warning(str(e))
             return False
 
-    def coerce_record_to_valid_state(self, record: Dict) -> Union[None, Dict]:
+    def coerce_record_to_valid_state(self, record: Dict) -> None | Dict:
         """Returns None if record cannot be coerced into valid state,
         else returns newly valid record"""
         logger.info(f"Received request to coerce record: {record}")
diff --git a/app/support/data_access_layer/records/appointment_record.py b/app/support/data_access_layer/records/appointment_record.py
index ad13fcc..80a50fc 100644
--- a/app/support/data_access_layer/records/appointment_record.py
+++ b/app/support/data_access_layer/records/appointment_record.py
@@ -1,5 +1,5 @@
 from datetime import datetime, timezone
-from typing import Dict, Union
+from typing import Dict
 from decimal import Decimal
 
 from app.support.data_access_layer.records.abstract_record import AbstractRecordFactory
@@ -21,7 +21,7 @@ def produce_record(
             pet_name: str,
             appointment_time: datetime,
             description: str
-            ) -> Dict[str, Union[str, Decimal]]:
+            ) -> Dict[str, str | Decimal]:
         sort_key = f"{RecordType.APPOINTMENT.value}#{utc_timestamp_now()}"
         illness_record = {
             "name": pet_name,
diff --git a/app/support/data_access_layer/records/details_record.py b/app/support/data_access_layer/records/details_record.py
index 577b762..7dea2cb 100644
--- a/app/support/data_access_layer/records/details_record.py
+++ b/app/support/data_access_layer/records/details_record.py
@@ -1,4 +1,4 @@
-from typing import Dict, Union
+from typing import Dict
 from datetime import datetime
 from decimal import Decimal
 
@@ -24,7 +24,7 @@ def produce_record(
             gender: str,
             breed: str,
             microchip_number: int
-    ) -> Dict[str, Union[str, Decimal]]:
+    ) -> Dict[str, str | Decimal]:
         details_record = {
             "name": pet_name,
             "sort_key": RecordType.DETAILS.value,
diff --git a/app/support/data_access_layer/records/illness_record.py b/app/support/data_access_layer/records/illness_record.py
index 9d6576c..60193dd 100644
--- a/app/support/data_access_layer/records/illness_record.py
+++ b/app/support/data_access_layer/records/illness_record.py
@@ -1,5 +1,5 @@
 from datetime import datetime, timezone
-from typing import Dict, Union
+from typing import Dict
 from decimal import Decimal
 
 from app.support.data_access_layer.records.abstract_record import AbstractRecordFactory
@@ -22,7 +22,7 @@ def produce_record(
             ailment: str,
             observed_time: datetime,
             description: str
-            ) -> Dict[str, Union[str, Decimal]]:
+            ) -> Dict[str, str | Decimal]:
         sort_key = f"{RecordType.ILLNESS.value}#{ailment}#{utc_timestamp_now()}"
         illness_record = {
             "name": pet_name,
diff --git a/app/support/data_access_layer/records/medication_record.py b/app/support/data_access_layer/records/medication_record.py
index e06deb8..dbc6aac 100644
--- a/app/support/data_access_layer/records/medication_record.py
+++ b/app/support/data_access_layer/records/medication_record.py
@@ -1,4 +1,4 @@
-from typing import Dict, Optional, Union
+from typing import Dict, Optional
 from datetime import datetime, timezone
 from decimal import Decimal
 
@@ -23,7 +23,7 @@ def produce_record(
             name_of_medicine: str,
             type_of_medicine: str,
             next_due: Optional[datetime]
-    ) -> Dict[str, Union[str, Decimal, bool]]:
+    ) -> Dict[str, str | Decimal | bool]:
         sort_key = f"{RecordType.MEDICATION.value}#{type_of_medicine}#{utc_timestamp_now()}"
         if next_due is None:
             next_due_section = {
diff --git a/app/support/data_access_layer/records/observation_record.py b/app/support/data_access_layer/records/observation_record.py
index 46da2ad..2f7d4a3 100644
--- a/app/support/data_access_layer/records/observation_record.py
+++ b/app/support/data_access_layer/records/observation_record.py
@@ -1,5 +1,5 @@
 from datetime import datetime, timezone
-from typing import Dict, Union
+from typing import Dict
 from decimal import Decimal
 
 from app.support.data_access_layer.records.abstract_record import AbstractRecordFactory
@@ -21,7 +21,7 @@ def produce_record(
             pet_name: str,
             observed_time: datetime,
             description: str
-            ) -> Dict[str, Union[str, Decimal]]:
+            ) -> Dict[str, str | Decimal]:
         sort_key = f"{RecordType.OBSERVATION.value}#{utc_timestamp_now()}"
         illness_record = {
             "name": pet_name,