diff --git a/addons/stock/tests/test_packing_neg.py b/addons/stock/tests/test_packing_neg.py
index 13a897c231b..f534b42b237 100644
--- a/addons/stock/tests/test_packing_neg.py
+++ b/addons/stock/tests/test_packing_neg.py
@@ -7,6 +7,15 @@ from odoo.tests.common import TransactionCase
 class TestPackingNeg(TransactionCase):
 
     def test_packing_neg(self):
+        res_partner_2 = self.env['res.partner'].create({
+            'name': 'Deco Addict',
+            'email': 'deco.addict82@example.com',
+        })
+
+        res_partner_4 = self.env['res.partner'].create({
+            'name': 'Ready Mat',
+            'email': 'ready.mat28@example.com',
+        })
 
         # Create a new "negative" storable product
         product_neg = self.env['product.product'].create({
@@ -17,7 +26,7 @@ class TestPackingNeg(TransactionCase):
             'standard_price': 70.0,
             'seller_ids': [(0, 0, {
                 'delay': 1,
-                'name': self.ref('base.res_partner_2'),
+                'name': res_partner_2.id,
                 'min_qty': 2.0,})],
             'uom_id': self.ref('uom.product_uom_unit'),
             'uom_po_id': self.ref('uom.product_uom_unit'),
@@ -26,7 +35,7 @@ class TestPackingNeg(TransactionCase):
         # Create an incoming picking for this product of 300 PCE from suppliers to stock
         vals = {
             'name': 'Incoming picking (negative product)',
-            'partner_id': self.ref('base.res_partner_2'),
+            'partner_id': res_partner_2.id,
             'picking_type_id': self.ref('stock.picking_type_in'),
             'location_id': self.ref('stock.stock_location_suppliers'),
             'location_dest_id': self.ref('stock.stock_location_stock'),
@@ -83,7 +92,7 @@ class TestPackingNeg(TransactionCase):
         # Make a delivery order of 300 pieces to the customer
         vals = {
             'name': 'outgoing picking (negative product)',
-            'partner_id': self.ref('base.res_partner_4'),
+            'partner_id': res_partner_4.id,
             'picking_type_id': self.ref('stock.picking_type_out'),
             'location_id': self.ref('stock.stock_location_stock'),
             'location_dest_id': self.ref('stock.stock_location_customers'),
@@ -140,7 +149,7 @@ class TestPackingNeg(TransactionCase):
         # Create a picking for reconciling the negative quant
         vals = {
             'name': 'reconciling_delivery',
-            'partner_id': self.ref('base.res_partner_4'),
+            'partner_id': res_partner_4.id,
             'picking_type_id': self.ref('stock.picking_type_in'),
             'location_id': self.ref('stock.stock_location_suppliers'),
             'location_dest_id': self.ref('stock.stock_location_stock'),