diff --git a/app/Http/Requests/Bo/Ajax/UpdateMediaRequest.php b/app/Http/Requests/Bo/Ajax/UpdateMediaRequest.php
index 729fe22..ee41556 100644
--- a/app/Http/Requests/Bo/Ajax/UpdateMediaRequest.php
+++ b/app/Http/Requests/Bo/Ajax/UpdateMediaRequest.php
@@ -55,6 +55,12 @@ class UpdateMediaRequest extends FormRequest
             unset($rules['langue_id']);
         }
 
+        // Article.
+        if ($this->sujet_id == 1) {
+            $rules['articles']      = 'present|array|min:0';
+            $rules['articles.*']    = 'array';
+            $rules['articles.*.id'] = 'exists:articles,id';
+        }
         // Marque.
         if ($this->sujet_id == 2) {
             $rules['marques']           = 'present|array|min:0';