diff --git a/composer.json b/composer.json
index e04d2b24..3529012c 100644
--- a/composer.json
+++ b/composer.json
@@ -21,6 +21,7 @@
     "require-dev": {
         "laravel/framework": "~5.1",
         "latte/latte": "~2.2",
+        "league/container": "^2.0",
         "mikey179/vfsStream": "~1.6",
         "mockery/mockery": "~0.9",
         "nette/di": "~2.2",