diff --git a/common/models/UserInfo.php b/common/models/UserInfo.php
index ea31365..e28548e 100755
--- a/common/models/UserInfo.php
+++ b/common/models/UserInfo.php
@@ -98,7 +98,7 @@
                 [
                     [ 'prepayment' ],
                     'number',
-                    'min' => 1,
+                    'min' => 0,
                     'max' => 100,
                 ],
                 [
--
libgit2 0.21.4