diff --git a/setup.cfg b/setup.cfg
index 865b4c3..577d917 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -35,7 +35,10 @@ project_urls =
     Documentation = https://django-cryptography.readthedocs.io
 
 [options]
-packages = django_cryptography
+packages =
+    django_cryptography
+    django_cryptography.core
+    django_cryptography.utils
 python_requires = >=3.6
 include_package_data = True
 install_requires =