diff --git a/composer.json b/composer.json
index acadca5..e9ecfee 100644
--- a/composer.json
+++ b/composer.json
@@ -4,7 +4,8 @@
     "type": "project",
     "description": "The \"Symfony Standard Edition\" distribution",
     "autoload": {
-        "psr-0": { "": "src/", "SymfonyStandard": "app/" }
+        "psr-4": { "": "src/" },
+        "classmap": [ "app/AppKernel.php", "app/AppCache.php" ]
     },
     "require": {
         "php": ">=7.0.0",