diff --git a/Models/ProjectMapper.php b/Models/ProjectMapper.php
index a7b66aa..899edb6 100644
--- a/Models/ProjectMapper.php
+++ b/Models/ProjectMapper.php
@@ -33,7 +33,7 @@ final class ProjectMapper extends DataMapperAbstract
     /**
      * Columns.
      *
-     * @var array<string, array<string, string|bool>>
+     * @var array<string, array<string, bool|string>>
      * @since 1.0.0
      */
     protected static $columns = [
@@ -55,7 +55,7 @@ final class ProjectMapper extends DataMapperAbstract
     /**
      * Has many relation.
      *
-     * @var array<string, array<string, string|null>>
+     * @var array<string, array<string, null|string>>
      * @since 1.0.0
      */
     protected static $hasMany = [