diff --git a/composer.json b/composer.json
index 1fd7e82..216888e 100644
--- a/composer.json
+++ b/composer.json
@@ -36,11 +36,14 @@
             "tests/classes/"
         ],
         "psr-4": {
-            "Tests\\PHP8\\": ["tests/named-arguments"]
+            "Tests\\PHP8\\": [
+                "tests/named-arguments"
+            ]
         }
     },
     "require-dev": {
         "ext-pdo_sqlite": "*",
+        "flightphp/container": "^1.0",
         "flightphp/runway": "^0.2.3 || ^1.0",
         "league/container": "^4.2",
         "level-2/dice": "^4.0",