diff --git a/models/financial_vouchers.json b/models/financial_vouchers.json
index bbd6f6f..5fb8fc6 100644
--- a/models/financial_vouchers.json
+++ b/models/financial_vouchers.json
@@ -52,7 +52,8 @@
             "name": "amount",
             "title": "金额",
             "type": "decimal",
-            "length": "15,2",
+            "length": 15,
+            "dec": 2,
             "nullable": false,
             "comments": "凭证金额"
         },
diff --git a/models/payments.json b/models/payments.json
index b8b1201..c1ff975 100644
--- a/models/payments.json
+++ b/models/payments.json
@@ -44,7 +44,8 @@
             "name": "payment_amount",
             "title": "支出金额",
             "type": "decimal",
-            "length": "15,2",
+            "length": 15,
+            "dec": 2,
             "nullable": false,
             "comments": "支出金额"
         },
diff --git a/models/receipt_allocations.json b/models/receipt_allocations.json
index 82120f5..bbffb47 100644
--- a/models/receipt_allocations.json
+++ b/models/receipt_allocations.json
@@ -44,7 +44,8 @@
             "name": "allocated_amount",
             "title": "分配金额",
             "type": "decimal",
-            "length": "15,2",
+            "length": 15,
+            "dec": 2,
             "nullable": false,
             "comments": "分配给该订单的金额"
         },
@@ -52,7 +53,8 @@
             "name": "allocation_percentage",
             "title": "分配比例",
             "type": "decimal",
-            "length": "5,4",
+            "length": 5,
+            "dec": 4,
             "nullable": true,
             "comments": "分配比例（0-1之间）"
         },
diff --git a/models/receipts.json b/models/receipts.json
index 5c4a7c0..0642aa4 100644
--- a/models/receipts.json
+++ b/models/receipts.json
@@ -36,7 +36,8 @@
             "name": "total_amount",
             "title": "收款总额",
             "type": "decimal",
-            "length": "15,2",
+            "length": 15,
+            "dec": 2,
             "nullable": false,
             "comments": "本次收款总金额"
         },