diff --git a/configuration.py b/configuration.py
index 34ea32d58e..4c4ac453c7 100644
--- a/configuration.py
+++ b/configuration.py
@@ -27,5 +27,4 @@ class ConfigurationSalePriceList(ModelSQL, CompanyValueMixin):
         'product.price_list', "Sale Price List",
         domain=[
             ('company', '=', Eval('company', -1)),
-            ],
-        depends=['company'])
+            ])
diff --git a/party.py b/party.py
index c9638ad3e4..8673857b89 100644
--- a/party.py
+++ b/party.py
@@ -52,13 +52,12 @@ class PartySalePriceList(ModelSQL, CompanyValueMixin):
         context={
             'company': Eval('company', -1),
             },
-        depends=['company'])
+        depends={'company'})
     sale_price_list = fields.Many2One(
         'product.price_list', "Sale Price List",
         domain=[
             ('company', '=', Eval('company', -1)),
-            ],
-        depends=['company'])
+            ])
 
     @classmethod
     def __register__(cls, module_name):
diff --git a/sale.py b/sale.py
index b96b2f2c20..1fa2ff36c0 100644
--- a/sale.py
+++ b/sale.py
@@ -13,8 +13,7 @@ class Sale(metaclass=PoolMeta):
         states={
             'readonly': Or(Not(Equal(Eval('state'), 'draft')),
                 Bool(Eval('lines', [0]))),
-            },
-        depends=['state', 'company'])
+            })
 
     @classmethod
     def __setup__(cls):
@@ -23,10 +22,6 @@ class Sale(metaclass=PoolMeta):
             | Eval('lines', [0]))
         cls.lines.states['readonly'] = (cls.lines.states['readonly']
             | ~Eval('party') | ~Eval('company'))
-        if 'party' not in cls.lines.depends:
-            cls.lines.depends.append('party')
-        if 'company' not in cls.lines.depends:
-            cls.lines.depends.append('company')
 
     @fields.depends('company')
     def on_change_party(self):