diff --git a/chassis/apiflask_demo/__init__.py b/chassis/apiflask_demo/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/chassis/nameko_demo/__init__.py b/chassis/nameko_demo/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/chassis/timer_demo/__init__.py b/chassis/timer_demo/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/setup.py b/setup.py
index 57aa0f4..6acbe3b 100644
--- a/setup.py
+++ b/setup.py
@@ -53,11 +53,13 @@ setup(
     ],
     extras_require={
         'nameko': ['nameko==3.0.0rc11',
-                   'nameko-sentry==1.0.0',
-                   'nameko-serializer==1.0.0'],
-        'apiflask': ['apiflask>=1.3.1', 'gevent>=22.10.2', 'gunicorn==20.1.0'],
+                   'nameko-sentry==1.0.0'],
+        'apiflask': ['apiflask>=1.3.1',
+                     'gevent>=22.10.2',
+                     'gunicorn==20.1.0'],
         'rocketry': ['rocketry==2.4.0'],
         'gutter': ['gutter==0.5.0'],
-        'mysql': ['pymysql==1.0.3', 'sqlalchemy==2.0.15'],
+        'mysql': ['pymysql==1.0.3',
+                  'sqlalchemy==2.0.15'],
     },
 )