diff --git a/app/Models/Blacklist.php b/app/Models/Blacklist.php
index d07e29a..d9c42c3 100644
--- a/app/Models/Blacklist.php
+++ b/app/Models/Blacklist.php
@@ -8,7 +8,7 @@ class Blacklist extends SoftDeletesModel
     protected $appends = ['file_detail'];
 
     protected $casts = [
-        'file'=>'array'
+        'file'=>'json'
     ];
 
     public function getFileDetailAttribute()
diff --git a/app/Models/GateLog.php b/app/Models/GateLog.php
index a40393c..789d02d 100644
--- a/app/Models/GateLog.php
+++ b/app/Models/GateLog.php
@@ -7,8 +7,8 @@ class GateLog extends CommonModel
     protected $guarded = ['id'];
 
     protected $casts = [
-        'person_no' => 'array',
-        'car_no' => 'array'
+        'person_no' => 'json',
+        'car_no' => 'json'
     ];
 
     public static function add($admin_id, $code, $person_no, $car_no, $remark = '')
diff --git a/app/Models/Study.php b/app/Models/Study.php
index 86fdf41..df21bbb 100644
--- a/app/Models/Study.php
+++ b/app/Models/Study.php
@@ -7,7 +7,7 @@ class Study extends SoftDeletesModel
     protected $guarded = ['id'];
 
     protected $casts = [
-        'file' => 'array'
+        'file' => 'json'
     ];
     protected $appends = ['file_detail'];
 
diff --git a/app/Models/Visit.php b/app/Models/Visit.php
index ce992f0..40fa81f 100644
--- a/app/Models/Visit.php
+++ b/app/Models/Visit.php
@@ -11,11 +11,11 @@ class Visit extends SoftDeletesModel
     protected $appends = ['type_text', 'audit_status_text', 'file_detail'];
 
     protected $casts = [
-        'follw_people' => 'array',
-        'cars' => 'array',
-        'file' => 'array',
-        'person_no' => 'array',
-        'car_no' => 'array'
+        'follw_people' => 'json',
+        'cars' => 'json',
+        'file' => 'json',
+        'person_no' => 'json',
+        'car_no' => 'json'
     ];
 
     public function getFileDetailAttribute()
diff --git a/app/Models/VisitArea.php b/app/Models/VisitArea.php
index 8594ec2..fdc4c29 100644
--- a/app/Models/VisitArea.php
+++ b/app/Models/VisitArea.php
@@ -7,6 +7,6 @@ class VisitArea extends SoftDeletesModel
     protected $guarded = ['id'];
 
     protected $casts = [
-        'audit_admin' => 'array'
+        'audit_admin' => 'json'
     ];
 }