diff --git a/modules/models/personnage.mjs b/modules/models/personnage.mjs
index 3f06535..274be85 100644
--- a/modules/models/personnage.mjs
+++ b/modules/models/personnage.mjs
@@ -135,7 +135,7 @@ export default class PersonnageDataModel extends foundry.abstract.TypeDataModel
         }),
         heritage: new fields.SchemaField({
           label: new fields.StringField({ initial: "Héritage" }),
-          value: new fields.NumberField({ initial: 0, integer: true }),
+          value: new fields.StringField({ initial: "0" }),
           max: new fields.NumberField({ initial: 0, integer: true }),
           scenarios: new fields.NumberField({ initial: 0, integer: true })
         })
@@ -190,8 +190,8 @@ export default class PersonnageDataModel extends foundry.abstract.TypeDataModel
         })
       }),
       experience: new fields.SchemaField({
-        value: new fields.NumberField({ initial: 0, integer: true }),
-        pourtricher: new fields.NumberField({ initial: 0, integer: true })
+        value: new fields.StringField({ initial: "0" }),
+        pourtricher: new fields.StringField({ initial: "0" })
       }),
       combat: new fields.SchemaField({
         esquive: new fields.SchemaField({