diff --git a/pyproject.toml b/pyproject.toml
index 2520cfb..e010e4d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,14 @@ pyalfe = ["*.ini"]
 "pyalfe.templates" = ["oasis/*.nii.gz"]
 
 [tool.setuptools]
-packages = ["pyalfe"]
+packages = [
+    "pyalfe",
+    "pyalfe.interfaces",
+    "pyalfe.models",
+    "pyalfe.tasks",
+    "pyalfe.tools",
+    "pyalfe.utils"
+]
 
 [tool.ruff]
 line-length = 88