diff --git a/modules/purchase_requisition/purchase.py b/modules/purchase_requisition/purchase.py
index 7dda731036..e7d0455ecc 100644
--- a/modules/purchase_requisition/purchase.py
+++ b/modules/purchase_requisition/purchase.py
@@ -497,7 +497,7 @@ class PurchaseRequisitionLine(sequence_ordered(), ModelSQL, ModelView):
         if self.requisition:
             return self.requisition.state
 
-    @fields.depends('product', 'unit', 'quantity', 'supplier')
+    @fields.depends('product', 'unit')
     def on_change_product(self):
         if not self.product:
             return