diff --git a/Models/KanbanBoardMapper.php b/Models/KanbanBoardMapper.php
index f2da5b0..76ebda5 100644
--- a/Models/KanbanBoardMapper.php
+++ b/Models/KanbanBoardMapper.php
@@ -53,8 +53,8 @@ final class KanbanBoardMapper extends DataMapperAbstract
         'columns' => [
             'mapper' => KanbanColumnMapper::class,
             'table'  => 'kanban_column',
-            'dst'    => 'kanban_column_board',
-            'src'    => null,
+            'external' => 'kanban_column_board',
+            'self'   => null,
         ],
     ];
 
@@ -67,7 +67,7 @@ final class KanbanBoardMapper extends DataMapperAbstract
     protected static array $belongsTo = [
         'createdBy' => [
             'mapper' => AccountMapper::class,
-            'src'    => 'kanban_board_created_by',
+            'self'   => 'kanban_board_created_by',
         ],
     ];
 
diff --git a/Models/KanbanCardCommentMapper.php b/Models/KanbanCardCommentMapper.php
index c7569f3..d654329 100644
--- a/Models/KanbanCardCommentMapper.php
+++ b/Models/KanbanCardCommentMapper.php
@@ -51,8 +51,8 @@ final class KanbanCardCommentMapper extends DataMapperAbstract
         'media' => [
             'mapper' => MediaMapper::class,
             'table'  => 'kanban_card_comment_media',
-            'dst'    => 'kanban_card_comment_media_dst',
-            'src'    => 'kanban_card_comment_media_src',
+            'external' => 'kanban_card_comment_media_dst',
+            'self'   => 'kanban_card_comment_media_src',
         ],
     ];
 
diff --git a/Models/KanbanCardMapper.php b/Models/KanbanCardMapper.php
index f1ed291..5c5e91e 100644
--- a/Models/KanbanCardMapper.php
+++ b/Models/KanbanCardMapper.php
@@ -56,7 +56,7 @@ final class KanbanCardMapper extends DataMapperAbstract
     protected static array $belongsTo = [
         'createdBy' => [
             'mapper' => AccountMapper::class,
-            'src'    => 'kanban_card_created_by',
+            'self'   => 'kanban_card_created_by',
         ],
     ];
 
@@ -70,14 +70,14 @@ final class KanbanCardMapper extends DataMapperAbstract
         'media'    => [
             'mapper' => MediaMapper::class,
             'table'  => 'kanban_card_media',
-            'dst'    => 'kanban_card_media_dst',
-            'src'    => 'kanban_card_media_src',
+            'external' => 'kanban_card_media_dst',
+            'self'   => 'kanban_card_media_src',
         ],
         'comments' => [
             'mapper' => KanbanCardCommentMapper::class,
             'table'  => 'kanban_card_comment',
-            'dst'    => 'kanban_card_comment_card',
-            'src'    => null,
+            'external' => 'kanban_card_comment_card',
+            'self'   => null,
         ],
     ];
 
diff --git a/Models/KanbanColumnMapper.php b/Models/KanbanColumnMapper.php
index 93999f9..b84a2b0 100644
--- a/Models/KanbanColumnMapper.php
+++ b/Models/KanbanColumnMapper.php
@@ -49,8 +49,8 @@ final class KanbanColumnMapper extends DataMapperAbstract
         'cards' => [
             'mapper' => KanbanCardMapper::class,
             'table'  => 'kanban_card',
-            'dst'    => 'kanban_card_column',
-            'src'    => null,
+            'external' => 'kanban_card_column',
+            'self'   => null,
         ],
     ];