diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9efc13b..df03ecd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 All notable changes to `laravel-mongodb-passport` will be documented in this file
 
+## 1.1.1 - 2018-01-22
+- fix lumen support
+
 ## 1.1.0 - 2018-01-11
 - transfer ownership to designmynight
 
diff --git a/src/MongodbPassportServiceProvider.php b/src/MongodbPassportServiceProvider.php
index d22adbe..d7fb365 100644
--- a/src/MongodbPassportServiceProvider.php
+++ b/src/MongodbPassportServiceProvider.php
@@ -15,10 +15,17 @@ public function register()
         /*
          * Passport client extends Eloquent model by default, so we alias them.
          */
-        $loader = \Illuminate\Foundation\AliasLoader::getInstance();
-        $loader->alias('Laravel\Passport\AuthCode', AuthCode::class);
-        $loader->alias('Laravel\Passport\Client', Client::class);
-        $loader->alias('Laravel\Passport\PersonalAccessClient', PersonalAccessClient::class);
-        $loader->alias('Laravel\Passport\Token', Token::class);
+        if (class_exists('Illuminate\Foundation\AliasLoader')) {
+            $loader = \Illuminate\Foundation\AliasLoader::getInstance();
+            $loader->alias('Laravel\Passport\AuthCode', AuthCode::class);
+            $loader->alias('Laravel\Passport\Client', Client::class);
+            $loader->alias('Laravel\Passport\PersonalAccessClient', PersonalAccessClient::class);
+            $loader->alias('Laravel\Passport\Token', Token::class);
+        } else {
+            class_alias('Laravel\Passport\AuthCode', AuthCode::class);
+            class_alias('Laravel\Passport\Client', Client::class);
+            class_alias('Laravel\Passport\PersonalAccessClient', PersonalAccessClient::class);
+            class_alias('Laravel\Passport\Token', Token::class);
+        }
     }
 }