diff --git a/Admin/Routes/Web/Api.php b/Admin/Routes/Web/Api.php
index e516e9f..1398b0c 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\Draw\Controller\ApiController;
 use Modules\Draw\Models\PermissionState;
diff --git a/Admin/Routes/Web/Backend.php b/Admin/Routes/Web/Backend.php
index 57b1f5b..e4ec5e9 100644
--- a/Admin/Routes/Web/Backend.php
+++ b/Admin/Routes/Web/Backend.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 use Modules\Draw\Controller\BackendController;
 use Modules\Draw\Models\PermissionState;
diff --git a/Theme/Backend/Lang/Navigation.en.lang.php b/Theme/Backend/Lang/Navigation.en.lang.php
index 7d45d20..986a098 100644
--- a/Theme/Backend/Lang/Navigation.en.lang.php
+++ b/Theme/Backend/Lang/Navigation.en.lang.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 /**
  * Orange Management
  *
diff --git a/Theme/Backend/Lang/api.en.lang.php b/Theme/Backend/Lang/api.en.lang.php
index b07f33e..2f59807 100644
--- a/Theme/Backend/Lang/api.en.lang.php
+++ b/Theme/Backend/Lang/api.en.lang.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 /**
  * Orange Management
  *
diff --git a/Theme/Backend/Lang/en.lang.php b/Theme/Backend/Lang/en.lang.php
index 23d3322..e2d771f 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
  *
diff --git a/Theme/Backend/draw-create.tpl.php b/Theme/Backend/draw-create.tpl.php
index 6b1f2dc..845aa30 100644
--- a/Theme/Backend/draw-create.tpl.php
+++ b/Theme/Backend/draw-create.tpl.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 /**
  * Orange Management
  *
diff --git a/Theme/Backend/draw-list.tpl.php b/Theme/Backend/draw-list.tpl.php
index 9b32142..3eae9f9 100644
--- a/Theme/Backend/draw-list.tpl.php
+++ b/Theme/Backend/draw-list.tpl.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 /**
  * Orange Management
  *
diff --git a/Theme/Backend/draw-single.tpl.php b/Theme/Backend/draw-single.tpl.php
index 9987e04..6128db1 100644
--- a/Theme/Backend/draw-single.tpl.php
+++ b/Theme/Backend/draw-single.tpl.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 /**
  * Orange Management
  *