diff --git a/load_dataset.py b/load_dataset.py
index d5ed1da..fd24b84 100644
--- a/load_dataset.py
+++ b/load_dataset.py
@@ -39,7 +39,7 @@ def analisis_univariado(dfi, target=None, continuas=[], discretas=[]):
         group2_values = data_group2[var]
 
         # Test de normalidad (Shapiro-Wilk)
-        stat, p = shapiro(Xvar)
+        stat, p = shapiro(Xvar, nan_policy='raise')
         normal = p >= 0.05
 
         if normal: