diff --git a/pyproject.toml b/pyproject.toml
index 26a63934..0ad39002 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -67,7 +67,7 @@ develop = [
 	"montepy[test,doc,format]",
 ]
 demos = ["jupyter"]
-demo-test = ["papermill"]
+demo-test = ["montepy[demos]", "papermill"]
 
 
 [project.urls]