diff --git a/packages/backend/src/models/user.js b/packages/backend/src/models/user.js
index c3900b4f..72dee71a 100644
--- a/packages/backend/src/models/user.js
+++ b/packages/backend/src/models/user.js
@@ -33,8 +33,8 @@ class User extends Base {
       fullName: { type: 'string', minLength: 1 },
       email: { type: 'string', format: 'email', minLength: 1, maxLength: 255 },
       password: { type: 'string' },
-      resetPasswordToken: { type: 'string' },
-      resetPasswordTokenSentAt: { type: 'string' },
+      resetPasswordToken: { type: ['string', 'null'] },
+      resetPasswordTokenSentAt: { type: ['string', 'null'], format: 'date-time' },
       trialExpiryDate: { type: 'string' },
       roleId: { type: 'string', format: 'uuid' },
       deletedAt: { type: 'string' },