diff --git a/kepi/sombrero_sendpub/apps.py b/kepi/sombrero_sendpub/apps.py
new file mode 100644
index 0000000..56c0c71
--- /dev/null
+++ b/kepi/sombrero_sendpub/apps.py
@@ -0,0 +1,5 @@
+import django.apps
+
+class SombreroApiConfig(django.apps.AppConfig):
+    name = 'kepi.sombrero_sendpub'
+    default_auto_field = 'django.db.models.AutoField'
diff --git a/kepi/trilby_api/apps.py b/kepi/trilby_api/apps.py
index e0695c4..b8498a1 100644
--- a/kepi/trilby_api/apps.py
+++ b/kepi/trilby_api/apps.py
@@ -1,5 +1,5 @@
-from django.apps import AppConfig
+import django.apps
 
-
-class TrilbyApiConfig(AppConfig):
+class TrilbyApiConfig(django.apps.AppConfig):
     name = 'kepi.trilby_api'
+    default_auto_field = 'django.db.models.AutoField'