diff --git a/app/Conductors/AnalyticsConductor.php b/app/Conductors/AnalyticsConductor.php
index f957b60..7fecbc3 100644
--- a/app/Conductors/AnalyticsConductor.php
+++ b/app/Conductors/AnalyticsConductor.php
@@ -19,7 +19,7 @@ class AnalyticsConductor extends Conductor
      * The Model Class
      * @var string
      */
-    protected $class = '\App\Models\Analytics';
+    protected $class = \App\Models\Analytics::class;
 
     /**
      * The default sorting field
diff --git a/app/Conductors/ArticleConductor.php b/app/Conductors/ArticleConductor.php
index 437c323..a99d54a 100644
--- a/app/Conductors/ArticleConductor.php
+++ b/app/Conductors/ArticleConductor.php
@@ -19,7 +19,7 @@ class ArticleConductor extends Conductor
      * The Model Class
      * @var string
      */
-    protected $class = '\App\Models\Article';
+    protected $class = \App\Models\Article::class;
 
     /**
      * The default sorting field
diff --git a/app/Conductors/EventConductor.php b/app/Conductors/EventConductor.php
index a2b482a..d20e82c 100644
--- a/app/Conductors/EventConductor.php
+++ b/app/Conductors/EventConductor.php
@@ -14,7 +14,7 @@ class EventConductor extends Conductor
      * The Model Class
      * @var string
      */
-    protected $class = '\App\Models\Event';
+    protected $class = \App\Models\Event::class;
 
     /**
      * The default sorting field
diff --git a/app/Conductors/MediaConductor.php b/app/Conductors/MediaConductor.php
index 16abbee..0b29d06 100644
--- a/app/Conductors/MediaConductor.php
+++ b/app/Conductors/MediaConductor.php
@@ -12,7 +12,7 @@ class MediaConductor extends Conductor
      * The Model Class
      * @var string
      */
-    protected $class = '\App\Models\Media';
+    protected $class = \App\Models\Media::class;
 
     /**
      * The default sorting field
diff --git a/app/Conductors/ShortlinkConductor.php b/app/Conductors/ShortlinkConductor.php
index 9a32bcf..578d81f 100644
--- a/app/Conductors/ShortlinkConductor.php
+++ b/app/Conductors/ShortlinkConductor.php
@@ -12,7 +12,7 @@ class ShortlinkConductor extends Conductor
      * The Model Class
      * @var string
      */
-    protected $class = '\App\Models\Shortlink';
+    protected $class = \App\Models\Shortlink::class;
 
     /**
      * The default sorting field
diff --git a/app/Conductors/SubscriptionConductor.php b/app/Conductors/SubscriptionConductor.php
index 191eed6..54a0c95 100644
--- a/app/Conductors/SubscriptionConductor.php
+++ b/app/Conductors/SubscriptionConductor.php
@@ -10,7 +10,7 @@ class SubscriptionConductor extends Conductor
      * The Model Class
      * @var string
      */
-    protected $class = '\App\Models\Subscription';
+    protected $class = \App\Models\Subscription::class;
 
 
     /**
diff --git a/app/Conductors/UserConductor.php b/app/Conductors/UserConductor.php
index 4c21e69..2881993 100644
--- a/app/Conductors/UserConductor.php
+++ b/app/Conductors/UserConductor.php
@@ -10,7 +10,7 @@ class UserConductor extends Conductor
      * The Model Class
      * @var string
      */
-    protected $class = '\App\Models\User';
+    protected $class = \App\Models\User::class;
 
 
     /**
diff --git a/app/Filters/SubscriptionFilter.php b/app/Filters/SubscriptionFilter.php
index 04d0d8d..8e210d2 100644
--- a/app/Filters/SubscriptionFilter.php
+++ b/app/Filters/SubscriptionFilter.php
@@ -11,7 +11,7 @@ class SubscriptionFilter extends FilterAbstract
      *
      * @var mixed
      */
-    protected $class = '\App\Models\Subscription';
+    protected $class = \App\Models\Subscription::class;
 
 
     /**
diff --git a/app/Models/Article.php b/app/Models/Article.php
index 4df85b3..34066c7 100644
--- a/app/Models/Article.php
+++ b/app/Models/Article.php
@@ -44,6 +44,6 @@ class Article extends Model
      */
     public function attachments()
     {
-        return $this->morphMany('App\Models\Attachment', 'attachable');
+        return $this->morphMany(\App\Models\Attachment::class, 'attachable');
     }
 }
diff --git a/app/Models/Event.php b/app/Models/Event.php
index ebd791c..b2dca8d 100644
--- a/app/Models/Event.php
+++ b/app/Models/Event.php
@@ -43,7 +43,7 @@ class Event extends Model
      */
     public function attachments()
     {
-        return $this->morphMany('App\Models\Attachment', 'attachable');
+        return $this->morphMany(\App\Models\Attachment::class, 'attachable');
     }
 
     /**