diff --git a/Admin/Install/Navigation.php b/Admin/Install/Navigation.php
index d040dcc..85a9c46 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/WikiBadgeMapper.php b/Models/WikiBadgeMapper.php
index 1e24f92..936bcce 100644
--- a/Models/WikiBadgeMapper.php
+++ b/Models/WikiBadgeMapper.php
@@ -33,7 +33,7 @@ class WikiBadgeMapper extends DataMapperAbstract
     /**
      * Columns.
      *
-     * @var array
+     * @var array<string, array<string, string>>
      * @since 1.0.0
      */
     protected static $columns = [
diff --git a/Models/WikiCategoryMapper.php b/Models/WikiCategoryMapper.php
index d959433..c99cf57 100644
--- a/Models/WikiCategoryMapper.php
+++ b/Models/WikiCategoryMapper.php
@@ -33,7 +33,7 @@ class WikiCategoryMapper extends DataMapperAbstract
     /**
      * Columns.
      *
-     * @var array
+     * @var array<string, array<string, string>>
      * @since 1.0.0
      */
     protected static $columns = [
diff --git a/Models/WikiDocMapper.php b/Models/WikiDocMapper.php
index 0f5a8c3..caeac3b 100644
--- a/Models/WikiDocMapper.php
+++ b/Models/WikiDocMapper.php
@@ -33,7 +33,7 @@ class WikiDocMapper extends DataMapperAbstract
     /**
      * Columns.
      *
-     * @var array
+     * @var array<string, array<string, string>>
      * @since 1.0.0
      */
     protected static $columns = [
@@ -50,7 +50,7 @@ class WikiDocMapper extends DataMapperAbstract
     /**
      * Has many relation.
      *
-     * @var array
+     * @var array<string, array<string, string|null>>
      * @since 1.0.0
      */
     protected static $hasMany = [
@@ -65,7 +65,7 @@ class WikiDocMapper extends DataMapperAbstract
     /**
      * Has many relation.
      *
-     * @var array
+     * @var array<string, array<string, string|null>>
      * @since 1.0.0
      */
     protected static $ownsOne = [