diff --git a/backend/sophon/settings.py b/backend/sophon/settings.py
index 2545228..e328ab8 100644
--- a/backend/sophon/settings.py
+++ b/backend/sophon/settings.py
@@ -38,6 +38,7 @@ INSTALLED_APPS = [
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
+    'django.contrib.postgres',
     'rest_framework',
     'sophon.core',  # FIXME: Is .apps.CoreConfig not needed?
 ]