diff --git a/src/Controller/OfferController.php b/src/Controller/OfferController.php
index 846f04f..f4551b7 100644
--- a/src/Controller/OfferController.php
+++ b/src/Controller/OfferController.php
@@ -50,7 +50,7 @@ class OfferController extends AbstractController
             $offer->setCreatedAt(new \DateTime());
 
             if ($photo = $form['photo']->getData()) {
-                $filename = bin2hex(random_bytes(6)).'.'.$photo->guessExtension();
+                $filename = uniqid().'.'.$photo->guessExtension();
                 try {
                     $photo->move($photoDir, $filename);
                 } catch (FileException $e) {
@@ -103,7 +103,7 @@ class OfferController extends AbstractController
     public function editOffer(Offering $offer, OfferingRepository $offerRepository, Request $request, string $photoDir): Response
     {
         $form = $this->createForm(OfferingFormType::class, $offer);
-        $user = $this->getUser(); 
+        $user = $this->getUser();
         if ($offer->getByUser() === $user)
         {
             $form->handleRequest($request);
@@ -113,7 +113,7 @@ class OfferController extends AbstractController
                 $offer->setCreatedAt(new \DateTime());
 
                 if ($photo = $form['photo']->getData()) {
-                    $filename = bin2hex(random_bytes(6)).'.'.$photo->guessExtension();
+                    $filename = uniqid(random_bytes(6)).'.'.$photo->guessExtension();
                     try {
                         $photo->move($photoDir, $filename);
                     } catch (FileException $e) {