diff --git a/src/Api/GitLab/Client.php b/src/Api/GitLab/Client.php
index 67e72a0..74617bf 100644
--- a/src/Api/GitLab/Client.php
+++ b/src/Api/GitLab/Client.php
@@ -31,7 +31,7 @@ public function __construct()
 
         $token = self::resolveToken();
         if ($token !== null) {
-            $headers['PRIVATE-TOKEN'] = $token;
+            $headers['Authorization'] = 'Bearer ' . $token;
         }
 
         $this->client = new \GuzzleHttp\Client([