diff --git a/models/payfee.json b/models/payfee.json
index 8fe5ffc..f5b24d3 100644
--- a/models/payfee.json
+++ b/models/payfee.json
@@ -26,7 +26,7 @@
             "title": "费率",
             "type": "float",
             "length": 18,
-            "dec": 2
+            "dec": 4
         },
         {
             "name": "enabled_date",