diff --git a/Models/DepartmentMapper.php b/Models/DepartmentMapper.php
index 2f6ca5c..f532697 100644
--- a/Models/DepartmentMapper.php
+++ b/Models/DepartmentMapper.php
@@ -22,7 +22,7 @@ class DepartmentMapper extends DataMapperAbstract
     /**
      * Columns.
      *
-     * @var array<string, array>
+     * @var array
      * @since 1.0.0
      */
     protected static $columns = [
diff --git a/Models/PositionMapper.php b/Models/PositionMapper.php
index 989a391..a153e8d 100644
--- a/Models/PositionMapper.php
+++ b/Models/PositionMapper.php
@@ -23,7 +23,7 @@ class PositionMapper extends DataMapperAbstract
     /**
      * Columns.
      *
-     * @var array<string, array>
+     * @var array
      * @since 1.0.0
      */
     protected static $columns = [
diff --git a/Models/UnitMapper.php b/Models/UnitMapper.php
index 485b408..9735d0f 100644
--- a/Models/UnitMapper.php
+++ b/Models/UnitMapper.php
@@ -22,7 +22,7 @@ class UnitMapper extends DataMapperAbstract
     /**
      * Columns.
      *
-     * @var array<string, array>
+     * @var array
      * @since 1.0.0
      */
     protected static $columns = [