diff --git a/tests/conftest.py b/tests/conftest.py
index 145dea7..b48f3c8 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -22,18 +22,20 @@
 
 
 @pytest.fixture(scope="session")
-def uow():
+def uow() -> PocUnitOfWork:
     bootstrap()
     return PocUnitOfWork()
 
 
 @pytest.fixture(scope="session")
-def message_broker():
+def message_broker() -> RedisMessageBroker:
     return RedisMessageBroker()
 
 
 @pytest.fixture(scope="session")
-def message_bus(uow, example_event_handlers, example_command_handlers):
+def message_bus(
+    uow, example_event_handlers, example_command_handlers
+) -> MessageBus:
     return MessageBus.create(
         uow=uow,
         event_handlers=example_event_handlers,
@@ -43,60 +45,60 @@ def message_bus(uow, example_event_handlers, example_command_handlers):
 
 
 @pytest.fixture
-def base_dir():
-    return kingdom_sdk._get_base_dir()  # noqa
+def base_dir() -> str:
+    return kingdom_sdk._get_base_dir()
 
 
 @pytest.fixture
-def src_dir():
-    return kingdom_sdk._get_src_dir()  # noqa
+def src_dir() -> str:
+    return kingdom_sdk._get_src_dir()
 
 
 @pytest.fixture
-def poc_dir(base_dir):
+def poc_dir(base_dir) -> str:
     return os.path.join(base_dir, "tests/poc/")
 
 
 @pytest.fixture
-def query_path(poc_dir):
+def query_path(poc_dir) -> str:
     return os.path.join(poc_dir, "context_example/queries/query.sql")
 
 
 @pytest.fixture
-def example_entity():
+def example_entity() -> ExampleEntity:
     return ExampleEntity.create(name="created")
 
 
 @pytest.fixture
-def example_aggregate(example_entity):
+def example_aggregate(example_entity) -> ExampleAggregate:
     return ExampleAggregate.create(value=1.0, reference=example_entity)
 
 
 @pytest.fixture
-def example_value_object():
+def example_value_object() -> ExampleVO:
     return ExampleVO.create(field="immutable")
 
 
 @pytest.fixture
-def example_command():
+def example_command() -> CreateExampleAggregate:
     return CreateExampleAggregate.create(name="raised", value=1.0)
 
 
 @pytest.fixture
-def example_unhandlable_command():
+def example_unhandlable_command() -> ExemplifyUnhandlableCommand:
     return ExemplifyUnhandlableCommand.create()
 
 
 @pytest.fixture(scope="session")
-def example_command_handlers():
+def example_command_handlers() -> dict:
     return {CreateExampleAggregate: MagicMock()}
 
 
 @pytest.fixture
-def example_event():
+def example_event() -> ExampleAggregateCreated:
     return ExampleAggregateCreated.create(id=uuid4(), name="raised")
 
 
 @pytest.fixture(scope="session")
-def example_event_handlers():
+def example_event_handlers() -> dict:
     return {ExampleAggregateCreated: [MagicMock(), MagicMock()]}
diff --git a/tests/poc/context_example/bootstrap.py b/tests/poc/context_example/bootstrap.py
index 8695950..af33099 100644
--- a/tests/poc/context_example/bootstrap.py
+++ b/tests/poc/context_example/bootstrap.py
@@ -8,5 +8,5 @@
 
 def bootstrap() -> MetaData:
     return auto_start_mappers(
-        os.path.join(kingdom_sdk._get_base_dir(), "tests/poc/")  # noqa
+        os.path.join(kingdom_sdk._get_base_dir(), "tests/poc/")
     )
diff --git a/tests/poc/context_example/event.py b/tests/poc/context_example/event.py
index 3aa987e..8386db7 100644
--- a/tests/poc/context_example/event.py
+++ b/tests/poc/context_example/event.py
@@ -2,7 +2,6 @@
 
 from dataclasses import dataclass
 from typing import Any
-from uuid import UUID  # noqa: F401
 
 from kingdom_sdk.domain.message import Event
 from kingdom_sdk.utils import time
diff --git a/tests/poc/context_example/model.py b/tests/poc/context_example/model.py
index ff976a4..af9d662 100644
--- a/tests/poc/context_example/model.py
+++ b/tests/poc/context_example/model.py
@@ -3,7 +3,7 @@
 from dataclasses import dataclass
 from datetime import datetime
 from typing import Any
-from uuid import uuid4
+from uuid import UUID, uuid4
 
 from kingdom_sdk.domain.aggregate import Aggregate
 from kingdom_sdk.domain.entity import Entity
@@ -17,7 +17,7 @@ class ExampleEntity(Entity):
 
     def __init__(
         self,
-        id: UUID,  # noqa
+        id: UUID,
         version: int,
         is_discarded: bool,
         registered_at: datetime,
@@ -71,7 +71,7 @@ class ExampleAggregate(Aggregate):
 
     def __init__(
         self,
-        id: UUID,  # noqa
+        id: UUID,
         version: int,
         is_discarded: bool,
         registered_at: datetime,
diff --git a/tests/poc/loader_example/my_module.py b/tests/poc/loader_example/my_module.py
index 8cee6e3..f469843 100644
--- a/tests/poc/loader_example/my_module.py
+++ b/tests/poc/loader_example/my_module.py
@@ -1,2 +1,2 @@
-def return_ok():
+def return_ok() -> str:
     return "It works!"