diff --git a/Models/StockLocationMapper.php b/Models/StockLocationMapper.php
index a5b0cf7..5717faa 100755
--- a/Models/StockLocationMapper.php
+++ b/Models/StockLocationMapper.php
@@ -44,7 +44,7 @@ final class StockLocationMapper extends DataMapperFactory
     /**
      * Belongs to.
      *
-     * @var array<string, array{mapper:string, external:string, column?:string, by?:string}>
+     * @var array<string, array{mapper:class-string, external:string, column?:string, by?:string}>
      * @since 1.0.0
      */
     public const BELONGS_TO = [
diff --git a/Models/StockShelfMapper.php b/Models/StockShelfMapper.php
index f4d881c..6f3784e 100755
--- a/Models/StockShelfMapper.php
+++ b/Models/StockShelfMapper.php
@@ -44,7 +44,7 @@ final class StockShelfMapper extends DataMapperFactory
     /**
      * Belongs to.
      *
-     * @var array<string, array{mapper:string, external:string, column?:string, by?:string}>
+     * @var array<string, array{mapper:class-string, external:string, column?:string, by?:string}>
      * @since 1.0.0
      */
     public const BELONGS_TO = [