diff --git a/pyproject.toml b/pyproject.toml
index 759993f5..1a118bc7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,6 +8,9 @@ version = "0.1.0"
 description = "Multi-tenant e-commerce marketplace platform"
 requires-python = ">=3.11"
 
+[tool.setuptools.packages.find]
+include = ["app*", "models*", "middleware*", "storage*"]
+
 # =============================================================================
 # RUFF - Modern All-in-One Linter & Formatter
 # =============================================================================