diff --git a/jikimo_purchase_tier_validation/__manifest__.py b/jikimo_purchase_tier_validation/__manifest__.py
index 83df5447..18a63e80 100644
--- a/jikimo_purchase_tier_validation/__manifest__.py
+++ b/jikimo_purchase_tier_validation/__manifest__.py
@@ -20,7 +20,7 @@
     'version': '0.1',
 
     # any module necessary for this one to work correctly
-    'depends': ['purchase', 'base_tier_validation', 'documents'],
+    'depends': ['purchase', 'base_tier_validation', 'documents', 'purchase_request', 'account'],
 
     # always loaded
     'data': [
diff --git a/jikimo_purchase_tier_validation/models/models.py b/jikimo_purchase_tier_validation/models/models.py
index b991d393..df2e8894 100644
--- a/jikimo_purchase_tier_validation/models/models.py
+++ b/jikimo_purchase_tier_validation/models/models.py
@@ -153,3 +153,18 @@ class jikimo_purchase_tier_validation(models.Model):
                 'sticky': False,
             }
         }
+
+
+class jikimo_purchase_request(models.Model):
+    _inherit = 'purchase.order'
+    _description = "采购申请"
+
+
+class jikimo_account_payment(models.Model):
+    _inherit = 'account.payment'
+    _description = "付款单"
+
+
+class jikimo_account_move(models.Model):
+    _inherit = 'account.move'
+    _description = "发票账单"