diff --git a/api/core/repositories/celery_workflow_execution_repository.py b/api/core/repositories/celery_workflow_execution_repository.py
index e87d1cd6b2..d65c71abc8 100644
--- a/api/core/repositories/celery_workflow_execution_repository.py
+++ b/api/core/repositories/celery_workflow_execution_repository.py
@@ -6,6 +6,7 @@ providing improved performance by offloading database operations to background w
 """
 
 import logging
+from typing import override
 
 from sqlalchemy.engine import Engine
 from sqlalchemy.orm import sessionmaker
@@ -92,6 +93,7 @@ class CeleryWorkflowExecutionRepository(WorkflowExecutionRepository):
             self._triggered_from,
         )
 
+    @override
     def save(self, execution: WorkflowExecution):
         """
         Save or update a WorkflowExecution instance asynchronously using Celery.
diff --git a/api/core/repositories/celery_workflow_node_execution_repository.py b/api/core/repositories/celery_workflow_node_execution_repository.py
index 2451563317..dc2588b489 100644
--- a/api/core/repositories/celery_workflow_node_execution_repository.py
+++ b/api/core/repositories/celery_workflow_node_execution_repository.py
@@ -7,6 +7,7 @@ providing improved performance by offloading database operations to background w
 
 import logging
 from collections.abc import Sequence
+from typing import override
 
 from sqlalchemy.engine import Engine
 from sqlalchemy.orm import sessionmaker
@@ -105,6 +106,7 @@ class CeleryWorkflowNodeExecutionRepository(WorkflowNodeExecutionRepository):
             self._triggered_from,
         )
 
+    @override
     def save(self, execution: WorkflowNodeExecution):
         """
         Save or update a WorkflowNodeExecution instance to cache and asynchronously to database.
@@ -147,6 +149,7 @@ class CeleryWorkflowNodeExecutionRepository(WorkflowNodeExecutionRepository):
             # For now, we'll re-raise the exception
             raise
 
+    @override
     def get_by_workflow_execution(
         self,
         workflow_execution_id: str,
diff --git a/api/core/repositories/human_input_repository.py b/api/core/repositories/human_input_repository.py
index 740d727e26..7a97b32838 100644
--- a/api/core/repositories/human_input_repository.py
+++ b/api/core/repositories/human_input_repository.py
@@ -2,7 +2,7 @@ import dataclasses
 import json
 from collections.abc import Mapping, Sequence
 from datetime import datetime
-from typing import Any, Protocol
+from typing import Any, Protocol, override
 
 from sqlalchemy import select
 from sqlalchemy.orm import Session, selectinload
@@ -113,10 +113,12 @@ class _HumanInputFormRecipientEntityImpl(HumanInputFormRecipientEntity):
         self._recipient_model = recipient_model
 
     @property
+    @override
     def id(self) -> str:
         return self._recipient_model.id
 
     @property
+    @override
     def token(self) -> str:
         if self._recipient_model.access_token is None:
             raise AssertionError(f"access_token should not be None for recipient {self._recipient_model.id}")
@@ -144,10 +146,12 @@ class _HumanInputFormEntityImpl(HumanInputFormEntity):
         )
 
     @property
+    @override
     def id(self) -> str:
         return self._form_model.id
 
     @property
+    @override
     def submission_token(self) -> str | None:
         if self._console_recipient is not None:
             return self._console_recipient.access_token
@@ -156,30 +160,37 @@ class _HumanInputFormEntityImpl(HumanInputFormEntity):
         return self._interactive_surface_recipient.access_token
 
     @property
+    @override
     def recipients(self) -> list[HumanInputFormRecipientEntity]:
         return list(self._recipients)
 
     @property
+    @override
     def rendered_content(self) -> str:
         return self._form_model.rendered_content
 
     @property
+    @override
     def selected_action_id(self) -> str | None:
         return self._form_model.selected_action_id
 
     @property
+    @override
     def submitted_data(self) -> Mapping[str, Any] | None:
         return self._submitted_data
 
     @property
+    @override
     def submitted(self) -> bool:
         return self._form_model.submitted_at is not None
 
     @property
+    @override
     def status(self) -> HumanInputFormStatus:
         return self._form_model.status
 
     @property
+    @override
     def expiration_time(self) -> datetime:
         return self._form_model.expiration_time
 
diff --git a/api/core/repositories/sqlalchemy_workflow_execution_repository.py b/api/core/repositories/sqlalchemy_workflow_execution_repository.py
index 6be3902317..4bca8b34e8 100644
--- a/api/core/repositories/sqlalchemy_workflow_execution_repository.py
+++ b/api/core/repositories/sqlalchemy_workflow_execution_repository.py
@@ -4,6 +4,7 @@ SQLAlchemy implementation of the WorkflowExecutionRepository.
 
 import json
 import logging
+from typing import override
 
 from sqlalchemy.engine import Engine
 from sqlalchemy.orm import sessionmaker
@@ -174,6 +175,7 @@ class SQLAlchemyWorkflowExecutionRepository(WorkflowExecutionRepository):
 
         return db_model
 
+    @override
     def save(self, execution: WorkflowExecution):
         """
         Save or update a WorkflowExecution domain entity to the database.
diff --git a/api/core/repositories/sqlalchemy_workflow_node_execution_repository.py b/api/core/repositories/sqlalchemy_workflow_node_execution_repository.py
index b036687bc9..7eda458f85 100644
--- a/api/core/repositories/sqlalchemy_workflow_node_execution_repository.py
+++ b/api/core/repositories/sqlalchemy_workflow_node_execution_repository.py
@@ -7,7 +7,7 @@ import json
 import logging
 from collections.abc import Callable, Mapping, Sequence
 from concurrent.futures import ThreadPoolExecutor
-from typing import Any
+from typing import Any, override
 
 import psycopg2.errors
 from sqlalchemy import UnaryExpression, asc, desc, select
@@ -313,6 +313,7 @@ class SQLAlchemyWorkflowNodeExecutionRepository(WorkflowNodeExecutionRepository)
             offload=offload,
         )
 
+    @override
     def save(self, execution: WorkflowNodeExecution) -> None:
         """
         Save or update a NodeExecution domain entity to the database.
@@ -399,6 +400,7 @@ class SQLAlchemyWorkflowNodeExecutionRepository(WorkflowNodeExecutionRepository)
             if db_model.node_execution_id:
                 self._node_execution_cache[db_model.node_execution_id] = db_model
 
+    @override
     def save_execution_data(self, execution: WorkflowNodeExecution):
         domain_model = execution
         with self._session_factory(expire_on_commit=False) as session:
@@ -518,6 +520,7 @@ class SQLAlchemyWorkflowNodeExecutionRepository(WorkflowNodeExecutionRepository)
 
             return db_models
 
+    @override
     def get_by_workflow_execution(
         self,
         workflow_execution_id: str,