diff --git a/Admin/Install/Navigation.php b/Admin/Install/Navigation.php
index 8dc1360..e1c4a7c 100644
--- a/Admin/Install/Navigation.php
+++ b/Admin/Install/Navigation.php
@@ -38,7 +38,7 @@ class Navigation
      */
     public static function install(string $path = null, DatabasePool $dbPool = null) : void
     {
-        $navData = json_decode(file_get_contents(__DIR__ . '/Navigation.install.json'), true);
+        $navData = \json_decode(file_get_contents(__DIR__ . '/Navigation.install.json'), true);
 
         $class = '\\Modules\\Navigation\\Admin\\Installer';
         /** @var $class \Modules\Navigation\Admin\Installer */
diff --git a/Models/KanbanBoardMapper.php b/Models/KanbanBoardMapper.php
index c0e78ef..60175bb 100644
--- a/Models/KanbanBoardMapper.php
+++ b/Models/KanbanBoardMapper.php
@@ -34,7 +34,7 @@ class KanbanBoardMapper extends DataMapperAbstract
     /**
      * Columns.
      *
-     * @var array
+     * @var array<string, array<string, string>>
      * @since 1.0.0
      */
     protected static $columns = [
@@ -50,7 +50,7 @@ class KanbanBoardMapper extends DataMapperAbstract
     /**
      * Has many relation.
      *
-     * @var array
+     * @var array<string, array<string, string|null>>
      * @since 1.0.0
      */
     protected static $hasMany = [
diff --git a/Models/KanbanCardCommentMapper.php b/Models/KanbanCardCommentMapper.php
index dad695f..ab7e5f4 100644
--- a/Models/KanbanCardCommentMapper.php
+++ b/Models/KanbanCardCommentMapper.php
@@ -34,7 +34,7 @@ class KanbanCardCommentMapper extends DataMapperAbstract
     /**
      * Columns.
      *
-     * @var array
+     * @var array<string, array<string, string>>
      * @since 1.0.0
      */
     protected static $columns = [
@@ -48,7 +48,7 @@ class KanbanCardCommentMapper extends DataMapperAbstract
     /**
      * Has many relation.
      *
-     * @var array
+     * @var array<string, array<string, string|null>>
      * @since 1.0.0
      */
     protected static $hasMany = [
diff --git a/Models/KanbanCardMapper.php b/Models/KanbanCardMapper.php
index 4fc29c6..5776463 100644
--- a/Models/KanbanCardMapper.php
+++ b/Models/KanbanCardMapper.php
@@ -35,7 +35,7 @@ class KanbanCardMapper extends DataMapperAbstract
     /**
      * Columns.
      *
-     * @var array
+     * @var array<string, array<string, string>>
      * @since 1.0.0
      */
     protected static $columns = [
@@ -61,7 +61,7 @@ class KanbanCardMapper extends DataMapperAbstract
     /**
      * Has many relation.
      *
-     * @var array
+     * @var array<string, array<string, string|null>>
      * @since 1.0.0
      */
     protected static $hasMany = [
diff --git a/Models/KanbanColumnMapper.php b/Models/KanbanColumnMapper.php
index 6200ef3..ac50847 100644
--- a/Models/KanbanColumnMapper.php
+++ b/Models/KanbanColumnMapper.php
@@ -33,7 +33,7 @@ class KanbanColumnMapper extends DataMapperAbstract
     /**
      * Columns.
      *
-     * @var array
+     * @var array<string, array<string, string>>
      * @since 1.0.0
      */
     protected static $columns = [
@@ -46,7 +46,7 @@ class KanbanColumnMapper extends DataMapperAbstract
     /**
      * Has many relation.
      *
-     * @var array
+     * @var array<string, array<string, string|null>>
      * @since 1.0.0
      */
     protected static $hasMany = [
diff --git a/Models/KanbanLabelMapper.php b/Models/KanbanLabelMapper.php
index 91e420f..e99e091 100644
--- a/Models/KanbanLabelMapper.php
+++ b/Models/KanbanLabelMapper.php
@@ -33,7 +33,7 @@ class KanbanLabelMapper extends DataMapperAbstract
     /**
      * Columns.
      *
-     * @var array
+     * @var array<string, array<string, string>>
      * @since 1.0.0
      */
     protected static $columns = [