diff --git a/pyproject.toml b/pyproject.toml
index 50c95c8..816704d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -41,7 +41,12 @@ test = [
 
 [tool.setuptools]
 packages = [
-  'pancax'
+  'pancax',
+  'pancax.bcs',
+  'pancax.bvps',
+  'pancax.constitutive_models',
+  'pancax.data',
+  'pancax.domains'
 ]
 
 [tool.coverage.report]