diff --git a/src/dependency_injector/ext/aiohttp.py b/src/dependency_injector/ext/aiohttp.py
index 976089c3..43990a7d 100644
--- a/src/dependency_injector/ext/aiohttp.py
+++ b/src/dependency_injector/ext/aiohttp.py
@@ -7,7 +7,6 @@ import warnings
 
 from dependency_injector import providers
 
-
 warnings.warn(
     'Module "dependency_injector.ext.aiohttp" is deprecated since '
     'version 4.0.0. Use "dependency_injector.wiring" module instead.',
diff --git a/src/dependency_injector/ext/aiohttp.pyi b/src/dependency_injector/ext/aiohttp.pyi
index 370cc9b0..c524712c 100644
--- a/src/dependency_injector/ext/aiohttp.pyi
+++ b/src/dependency_injector/ext/aiohttp.pyi
@@ -1,14 +1,16 @@
-from typing import Awaitable as _Awaitable
+from typing import Any, Awaitable as _Awaitable, TypeVar
 
 from dependency_injector import providers
 
-class Application(providers.Singleton): ...
-class Extension(providers.Singleton): ...
-class Middleware(providers.DelegatedCallable): ...
-class MiddlewareFactory(providers.Factory): ...
+T = TypeVar("T")
 
-class View(providers.Callable):
-    def as_view(self) -> _Awaitable: ...
+class Application(providers.Singleton[T]): ...
+class Extension(providers.Singleton[T]): ...
+class Middleware(providers.DelegatedCallable[T]): ...
+class MiddlewareFactory(providers.Factory[T]): ...
 
-class ClassBasedView(providers.Factory):
-    def as_view(self) -> _Awaitable: ...
+class View(providers.Callable[T]):
+    def as_view(self) -> _Awaitable[T]: ...
+
+class ClassBasedView(providers.Factory[T]):
+    def as_view(self) -> _Awaitable[T]: ...
diff --git a/src/dependency_injector/ext/flask.py b/src/dependency_injector/ext/flask.py
index 498a9eee..15b9df0a 100644
--- a/src/dependency_injector/ext/flask.py
+++ b/src/dependency_injector/ext/flask.py
@@ -1,12 +1,12 @@
 """Flask extension module."""
 
 from __future__ import absolute_import
+
 import warnings
 
 from flask import request as flask_request
 
-from dependency_injector import providers, errors
-
+from dependency_injector import errors, providers
 
 warnings.warn(
     'Module "dependency_injector.ext.flask" is deprecated since '
diff --git a/src/dependency_injector/ext/flask.pyi b/src/dependency_injector/ext/flask.pyi
index 9b180c89..1c791b88 100644
--- a/src/dependency_injector/ext/flask.pyi
+++ b/src/dependency_injector/ext/flask.pyi
@@ -1,19 +1,21 @@
-from typing import Union, Optional, Callable as _Callable, Any
+from typing import Any, Callable as _Callable, Optional, TypeVar, Union
+
+from flask.wrappers import Request
 
-from flask import request as flask_request
 from dependency_injector import providers
 
-request: providers.Object[flask_request]
+request: providers.Object[Request]
+T = TypeVar("T")
 
-class Application(providers.Singleton): ...
-class Extension(providers.Singleton): ...
+class Application(providers.Singleton[T]): ...
+class Extension(providers.Singleton[T]): ...
 
-class View(providers.Callable):
-    def as_view(self) -> _Callable[..., Any]: ...
+class View(providers.Callable[T]):
+    def as_view(self) -> _Callable[..., T]: ...
 
-class ClassBasedView(providers.Factory):
-    def as_view(self, name: str) -> _Callable[..., Any]: ...
+class ClassBasedView(providers.Factory[T]):
+    def as_view(self, name: str) -> _Callable[..., T]: ...
 
 def as_view(
-    provider: Union[View, ClassBasedView], name: Optional[str] = None
-) -> _Callable[..., Any]: ...
+    provider: Union[View[T], ClassBasedView[T]], name: Optional[str] = None
+) -> _Callable[..., T]: ...