diff --git a/src/Models/OAuth.php b/src/Models/OAuth.php
index 62de480e..4c3a329a 100644
--- a/src/Models/OAuth.php
+++ b/src/Models/OAuth.php
@@ -30,6 +30,13 @@ class OAuth extends BaseModel
 
     public $table = 'oauth'; // phpcs:ignore
 
+    /** @var array<string, null> default attributes */
+    protected $attributes = [ // phpcs:ignore
+        'access_token'  => null,
+        'refresh_token' => null,
+        'expires_at'    => null,
+    ];
+
     /** @var bool Enable timestamps */
     public $timestamps = true; // phpcs:ignore
 
diff --git a/src/Models/Question.php b/src/Models/Question.php
index cab51ae8..598fe912 100644
--- a/src/Models/Question.php
+++ b/src/Models/Question.php
@@ -36,6 +36,13 @@ class Question extends BaseModel
     /** @var bool Enable timestamps */
     public $timestamps = true; // phpcs:ignore
 
+    /** @var array<string, null> default attributes */
+    protected $attributes = [ // phpcs:ignore
+        'answer'      => null,
+        'answerer_id' => null,
+        'answered_at' => null,
+    ];
+
     /** @var array<string> */
     protected $dates = [ // phpcs:ignore
         'answered_at',
diff --git a/src/Models/Room.php b/src/Models/Room.php
index 42c6d9a9..b4262570 100644
--- a/src/Models/Room.php
+++ b/src/Models/Room.php
@@ -39,6 +39,13 @@ class Room extends BaseModel
     /** @var bool Enable timestamps */
     public $timestamps = true; // phpcs:ignore
 
+    /** @var array<string, null> default attributes */
+    protected $attributes = [ // phpcs:ignore
+        'map_url'     => null,
+        'description' => null,
+        'dect'        => null,
+    ];
+
     /** @var array<string> */
     protected $fillable = [ // phpcs:ignore
         'name',
diff --git a/src/Models/Shifts/NeededAngelType.php b/src/Models/Shifts/NeededAngelType.php
index c3223b2e..b7a40cdc 100644
--- a/src/Models/Shifts/NeededAngelType.php
+++ b/src/Models/Shifts/NeededAngelType.php
@@ -32,6 +32,12 @@ class NeededAngelType extends BaseModel
 {
     use HasFactory;
 
+    /** @var array<string, null> default attributes */
+    protected $attributes = [ // phpcs:ignore
+        'room_id'  => null,
+        'shift_id' => null,
+    ];
+
     /** @var array<string> */
     protected $fillable = [ // phpcs:ignore
         'room_id',
@@ -40,12 +46,6 @@ class NeededAngelType extends BaseModel
         'count',
     ];
 
-    /** @var array<string, null> default attributes */
-    protected $attributes = [ // phpcs:ignore
-        'room_id'  => null,
-        'shift_id' => null,
-    ];
-
     public function room(): BelongsTo
     {
         return $this->belongsTo(Room::class);
diff --git a/src/Models/Shifts/Shift.php b/src/Models/Shifts/Shift.php
index ceabee40..95f831e1 100644
--- a/src/Models/Shifts/Shift.php
+++ b/src/Models/Shifts/Shift.php
@@ -56,6 +56,14 @@ class Shift extends BaseModel
 {
     use HasFactory;
 
+    /** @var array<string, string|null> default attributes */
+    protected $attributes = [ // phpcs:ignore
+        'description'    => '',
+        'url'            => '',
+        'transaction_id' => null,
+        'updated_by'     => null,
+    ];
+
     /** @var bool enable timestamps */
     public $timestamps = true; // phpcs:ignore
 
diff --git a/src/Models/Shifts/ShiftEntry.php b/src/Models/Shifts/ShiftEntry.php
index 632f5649..1ba40148 100644
--- a/src/Models/Shifts/ShiftEntry.php
+++ b/src/Models/Shifts/ShiftEntry.php
@@ -34,6 +34,13 @@ class ShiftEntry extends BaseModel
     use HasFactory;
     use UsesUserModel;
 
+    /** @var array<string, string|bool> default attributes */
+    protected $attributes = [ // phpcs:ignore
+        'user_comment'       => '',
+        'freeloaded'         => false,
+        'freeloaded_comment' => '',
+    ];
+
     /** @var array<string> */
     protected $fillable = [ // phpcs:ignore
         'shift_id',
@@ -44,13 +51,6 @@ class ShiftEntry extends BaseModel
         'freeloaded_comment',
     ];
 
-    /** @var array<string, string|bool> default attributes */
-    protected $attributes = [ // phpcs:ignore
-        'user_comment'       => '',
-        'freeloaded'         => false,
-        'freeloaded_comment' => '',
-    ];
-
     /** @var array<string, string> */
     protected $casts = [ // phpcs:ignore
         'freeloaded' => 'bool',
diff --git a/src/Models/User/Contact.php b/src/Models/User/Contact.php
index b4e74f89..043e29c2 100644
--- a/src/Models/User/Contact.php
+++ b/src/Models/User/Contact.php
@@ -20,6 +20,13 @@ class Contact extends HasUserModel
 {
     use HasFactory;
 
+    /** @var array<string, null> default attributes */
+    protected $attributes = [ // phpcs:ignore
+        'dect'   => null,
+        'mobile' => null,
+        'email'  => null,
+    ];
+
     /** @var string The table associated with the model */
     protected $table = 'users_contact'; // phpcs:ignore
 
diff --git a/src/Models/User/License.php b/src/Models/User/License.php
index 383f9651..a25102bb 100644
--- a/src/Models/User/License.php
+++ b/src/Models/User/License.php
@@ -33,7 +33,7 @@ class License extends HasUserModel
     /** @var string The table associated with the model */
     protected $table = 'users_licenses'; // phpcs:ignore
 
-    /** @var array Default attributes */
+    /** @var array<string, bool> Default attributes */
     protected $attributes = [ // phpcs:ignore
         'has_car'                => false,
         'drive_forklift'         => false,
diff --git a/src/Models/User/PersonalData.php b/src/Models/User/PersonalData.php
index 5bc01793..0007ae14 100644
--- a/src/Models/User/PersonalData.php
+++ b/src/Models/User/PersonalData.php
@@ -30,6 +30,16 @@ class PersonalData extends HasUserModel
     /** @var string The table associated with the model */
     protected $table = 'users_personal_data'; // phpcs:ignore
 
+    /** @var array<string, null> default attributes */
+    protected $attributes = [ // phpcs:ignore
+        'first_name'             => null,
+        'last_name'              => null,
+        'pronoun'                => null,
+        'shirt_size'             => null,
+        'planned_arrival_date'   => null,
+        'planned_departure_date' => null,
+    ];
+
     /** @var array<string> The attributes that should be mutated to dates */
     protected $dates = [ // phpcs:ignore
         'planned_arrival_date',
diff --git a/src/Models/User/State.php b/src/Models/User/State.php
index 6661dd6f..145ca17d 100644
--- a/src/Models/User/State.php
+++ b/src/Models/User/State.php
@@ -30,9 +30,10 @@ class State extends HasUserModel
     /** @var string The table associated with the model */
     protected $table = 'users_state'; // phpcs:ignore
 
-    /** @var array<string, bool|int> Default attributes */
+    /** @var array<string, bool|int|null> Default attributes */
     protected $attributes = [ // phpcs:ignore
         'arrived'      => false,
+        'arrival_date' => null,
         'active'       => false,
         'force_active' => false,
         'got_shirt'    => false,
diff --git a/src/Models/User/User.php b/src/Models/User/User.php
index 5ee705e0..25c21e5b 100644
--- a/src/Models/User/User.php
+++ b/src/Models/User/User.php
@@ -78,6 +78,11 @@ class User extends BaseModel
     /** @var bool enable timestamps */
     public $timestamps = true; // phpcs:ignore
 
+    /** @var array<string, null> default attributes */
+    protected $attributes = [ // phpcs:ignore
+        'last_login_at' => null,
+    ];
+
     /**
      * The attributes that are mass assignable.
      *
diff --git a/src/Models/UserAngelType.php b/src/Models/UserAngelType.php
index 83fcbecd..0a37b918 100644
--- a/src/Models/UserAngelType.php
+++ b/src/Models/UserAngelType.php
@@ -39,6 +39,12 @@ class UserAngelType extends Pivot
     /** @var bool Disable timestamps */
     public $timestamps = false; // phpcs:ignore
 
+    /** @var array<string, null|bool> default attributes */
+    protected $attributes = [ // phpcs:ignore
+        'confirm_user_id' => null,
+        'supporter'       => false,
+    ];
+
     /** @var array<string> */
     protected $fillable = [ // phpcs:ignore
         'user_id',