diff --git a/examples/miniapps/fastapi-redis/fastapiredis/application.py b/examples/miniapps/fastapi-redis/fastapiredis/application.py
index 706b472f..f8e4a3bb 100644
--- a/examples/miniapps/fastapi-redis/fastapiredis/application.py
+++ b/examples/miniapps/fastapi-redis/fastapiredis/application.py
@@ -1,9 +1,7 @@
 """Application module."""
 
-import sys
-
-from fastapi import FastAPI, Depends
 from dependency_injector.wiring import inject, Provide
+from fastapi import FastAPI, Depends
 
 from .containers import Container
 from .services import Service
@@ -12,14 +10,14 @@ from .services import Service
 app = FastAPI()
 
 
-@app.api_route('/')
+@app.api_route("/")
 @inject
 async def index(service: Service = Depends(Provide[Container.service])):
     value = await service.process()
-    return {'result': value}
+    return {"result": value}
 
 
 container = Container()
-container.config.redis_host.from_env('REDIS_HOST', 'localhost')
-container.config.redis_password.from_env('REDIS_PASSWORD', 'password')
-container.wire(modules=[sys.modules[__name__]])
+container.config.redis_host.from_env("REDIS_HOST", "localhost")
+container.config.redis_password.from_env("REDIS_PASSWORD", "password")
+container.wire(modules=[__name__])
diff --git a/examples/miniapps/fastapi-redis/fastapiredis/redis.py b/examples/miniapps/fastapi-redis/fastapiredis/redis.py
index 60c672e3..3c5f17f9 100644
--- a/examples/miniapps/fastapi-redis/fastapiredis/redis.py
+++ b/examples/miniapps/fastapi-redis/fastapiredis/redis.py
@@ -6,7 +6,7 @@ from aioredis import create_redis_pool, Redis
 
 
 async def init_redis_pool(host: str, password: str) -> AsyncIterator[Redis]:
-    pool = await create_redis_pool(f'redis://{host}', password=password)
+    pool = await create_redis_pool(f"redis://{host}", password=password)
     yield pool
     pool.close()
     await pool.wait_closed()
diff --git a/examples/miniapps/fastapi-redis/fastapiredis/services.py b/examples/miniapps/fastapi-redis/fastapiredis/services.py
index 7d426433..9a202c74 100644
--- a/examples/miniapps/fastapi-redis/fastapiredis/services.py
+++ b/examples/miniapps/fastapi-redis/fastapiredis/services.py
@@ -8,5 +8,5 @@ class Service:
         self._redis = redis
 
     async def process(self) -> str:
-        await self._redis.set('my-key', 'value')
-        return await self._redis.get('my-key', encoding='utf-8')
+        await self._redis.set("my-key", "value")
+        return await self._redis.get("my-key", encoding="utf-8")
diff --git a/examples/miniapps/fastapi-redis/fastapiredis/tests.py b/examples/miniapps/fastapi-redis/fastapiredis/tests.py
index 6ac376e5..bde075ab 100644
--- a/examples/miniapps/fastapi-redis/fastapiredis/tests.py
+++ b/examples/miniapps/fastapi-redis/fastapiredis/tests.py
@@ -11,7 +11,7 @@ from .services import Service
 
 @pytest.fixture
 def client(event_loop):
-    client = AsyncClient(app=app, base_url='http://test')
+    client = AsyncClient(app=app, base_url="http://test")
     yield client
     event_loop.run_until_complete(client.aclose())
 
@@ -19,10 +19,10 @@ def client(event_loop):
 @pytest.mark.asyncio
 async def test_index(client):
     service_mock = mock.AsyncMock(spec=Service)
-    service_mock.process.return_value = 'Foo'
+    service_mock.process.return_value = "Foo"
 
     with container.service.override(service_mock):
-        response = await client.get('/')
+        response = await client.get("/")
 
     assert response.status_code == 200
-    assert response.json() == {'result': 'Foo'}
+    assert response.json() == {"result": "Foo"}
diff --git a/examples/miniapps/fastapi-redis/requirements.txt b/examples/miniapps/fastapi-redis/requirements.txt
index c217324a..9a144a8d 100644
--- a/examples/miniapps/fastapi-redis/requirements.txt
+++ b/examples/miniapps/fastapi-redis/requirements.txt
@@ -1,7 +1,7 @@
 dependency-injector
 fastapi
 uvicorn
-aioredis
+aioredis<2  # TODO: Update example to work with aioredis >= 2.0
 
 # For testing:
 pytest