diff --git a/docker/settings.py b/docker/settings.py
index 2821d82..fb7d376 100644
--- a/docker/settings.py
+++ b/docker/settings.py
@@ -92,7 +92,7 @@ STATICFILES_FINDERS = (
 # Make this unique, and don't share it with anybody.
 SECRET_KEY = os.getenv('SECRET_KEY', '')
 
-MIDDLEWARE_CLASSES = (
+MIDDLEWARE = (
     'corsheaders.middleware.CorsMiddleware',
     'django.middleware.common.CommonMiddleware',
     'django.contrib.sessions.middleware.SessionMiddleware',