diff --git a/composer.json b/composer.json
index c5316b4..db1d7e2 100644
--- a/composer.json
+++ b/composer.json
@@ -17,7 +17,7 @@
         }
     ],
     "require": {
-        "php": "^7.1"
+        "php": "^7.1 || ^8.0"
     },
     "require-dev": {
         "behat/behat": "^3.5",
diff --git a/src/VIPSoft/DoctrineDataFixturesExtension/Service/FixtureService.php b/src/VIPSoft/DoctrineDataFixturesExtension/Service/FixtureService.php
index cb2284e..05a1c6b 100644
--- a/src/VIPSoft/DoctrineDataFixturesExtension/Service/FixtureService.php
+++ b/src/VIPSoft/DoctrineDataFixturesExtension/Service/FixtureService.php
@@ -304,7 +304,7 @@ private function fetchMigrations()
      */
     private function dispatchEvent($em, $event)
     {
-        $eventArgs = new LifecycleEventArgs(null, $em);
+        $eventArgs = new LifecycleEventArgs(new \stdClass(), $em);
 
         $em->getEventManager()
             ->dispatchEvent($event, $eventArgs);
@@ -495,6 +495,10 @@ public function flush()
 
         $this->referenceRepository = null;
 
+        if (!is_callable([$em->getMetadataFactory(), 'getCacheDriver'])) {
+            return;
+        }
+
         $cacheDriver = $em->getMetadataFactory()->getCacheDriver();
 
         if ($cacheDriver) {