diff --git a/src/Controller/AnalyticsController.php b/src/Controller/AnalyticsController.php
index eaf3447..3395e62 100644
--- a/src/Controller/AnalyticsController.php
+++ b/src/Controller/AnalyticsController.php
@@ -12,7 +12,6 @@ use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\Messenger\MessageBusInterface;
 use Symfony\Component\Routing\Attribute\Route;
-use Symfony\Component\Uid\Uuid;
 
 class AnalyticsController extends AbstractController
 {
@@ -78,7 +77,13 @@ class AnalyticsController extends AbstractController
         AnalyticsCryptoService $crypto,
         EntityManagerInterface $em,
     ): AnalyticsUniqId {
-        $uid = Uuid::v4()->toRfc4122();
+        $uid = sprintf('%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
+            random_int(0, 0xFFFF), random_int(0, 0xFFFF),
+            random_int(0, 0xFFFF),
+            random_int(0, 0x0FFF) | 0x4000,
+            random_int(0, 0x3FFF) | 0x8000,
+            random_int(0, 0xFFFF), random_int(0, 0xFFFF), random_int(0, 0xFFFF),
+        );
         $ua = $request->headers->get('User-Agent', '');
 
         $visitor = new AnalyticsUniqId();