diff --git a/Admin/Routes/Web/Api.php b/Admin/Routes/Web/Api.php
index 2ec7b9b..f3e157c 100644
--- a/Admin/Routes/Web/Api.php
+++ b/Admin/Routes/Web/Api.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 use Modules\Tag\Controller\ApiController;
 use Modules\Tag\Models\PermissionState;
diff --git a/Models/Tag.php b/Models/Tag.php
index 6c3def1..fb5b8f1 100644
--- a/Models/Tag.php
+++ b/Models/Tag.php
@@ -15,8 +15,6 @@ declare(strict_types=1);
 namespace Modules\Tag\Models;
 
 use phpOMS\Contract\ArrayableInterface;
-use phpOMS\Localization\ISO639x1Enum;
-use phpOMS\Stdlib\Base\Exception\InvalidEnumValue;
 
 /**
  * Tag article class.
diff --git a/Models/TagMapper.php b/Models/TagMapper.php
index 634fff0..f3f4e33 100644
--- a/Models/TagMapper.php
+++ b/Models/TagMapper.php
@@ -14,7 +14,6 @@ declare(strict_types=1);
 
 namespace Modules\Tag\Models;
 
-use Modules\Admin\Models\AccountMapper;
 use phpOMS\DataStorage\Database\DataMapperAbstract;
 
 /**
diff --git a/Theme/Backend/Lang/en.lang.php b/Theme/Backend/Lang/en.lang.php
index 3762365..3298ae0 100644
--- a/Theme/Backend/Lang/en.lang.php
+++ b/Theme/Backend/Lang/en.lang.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 /**
  * Orange Management
  *