diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2f58d5d..1ae5566 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Craft CMS - Mailjet mailer adapter
 
+## v2.1.0 - 2024-05-20
+
+### Changed
+
+- Updated for Craft CMS 5
+
 ## v2.0.2 - 2024-03-24
 
 ### Changed
diff --git a/composer.json b/composer.json
index 3f0f455..12d4d76 100644
--- a/composer.json
+++ b/composer.json
@@ -11,13 +11,13 @@
     "mailer",
     "adapter"
   ],
-  "homepage": "https://github.com/bertoost/Craft-3-Mailjet",
+  "homepage": "https://github.com/bertoost/Craft-Mailjet",
   "license": "MIT",
   "require": {
-    "php": "^8.0",
-    "craftcms/cms": "^4.1",
-    "mailjet/mailjet-apiv3-php": "^1.5.6",
-    "symfony/mailjet-mailer": "^v6.0"
+    "php": "^8.2",
+    "craftcms/cms": "^5.0",
+    "mailjet/mailjet-apiv3-php": "^1.6",
+    "symfony/mailjet-mailer": "^v7.0"
   },
   "autoload": {
     "psr-4": {
@@ -30,6 +30,6 @@
     "hasCpSettings": true,
     "developer": "Bert Oost",
     "developerUrl": "https://bertoost.com",
-    "documentationUrl": "https://github.com/bertoost/Craft-3-Mailjet/blob/master/README.md"
+    "documentationUrl": "https://github.com/bertoost/Craft-Mailjet/blob/master/README.md"
   }
 }
diff --git a/src/adapters/MailjetAdapter.php b/src/adapters/MailjetAdapter.php
index c29442d..39eab9f 100644
--- a/src/adapters/MailjetAdapter.php
+++ b/src/adapters/MailjetAdapter.php
@@ -67,13 +67,10 @@ public function defineTransport(): array|AbstractTransport
         );
     }
 
-    /**
-     * Returns whether or not the system is using this adapter
-     */
     public static function isUsed(): bool
     {
-        $mailTransport = Craft::$app->getMailer()->getTransport();
+        $transportType = Craft::$app->getProjectConfig()->get('email.transportType');
 
-        return $mailTransport instanceof MailjetApiTransport;
+        return $transportType === self::class;
     }
 }
\ No newline at end of file
diff --git a/src/traits/PluginEventsTrait.php b/src/traits/PluginEventsTrait.php
index 8f57f10..fe0d083 100644
--- a/src/traits/PluginEventsTrait.php
+++ b/src/traits/PluginEventsTrait.php
@@ -23,7 +23,7 @@ public function registerEvents(): void
         // register adapter
         Event::on(
             MailerHelper::class,
-            MailerHelper::EVENT_REGISTER_MAILER_TRANSPORT_TYPES,
+            MailerHelper::EVENT_REGISTER_MAILER_TRANSPORTS,
             static function (RegisterComponentTypesEvent $event) {
                 $event->types[] = MailjetAdapter::class;
             }
@@ -35,7 +35,7 @@ static function (RegisterComponentTypesEvent $event) {
             // register utility
             Event::on(
                 Utilities::class,
-                Utilities::EVENT_REGISTER_UTILITY_TYPES,
+                Utilities::EVENT_REGISTER_UTILITIES,
                 static function (RegisterComponentTypesEvent $event) {
                     $event->types[] = MailjetEventsUtility::class;
                 }