diff --git a/composer.json b/composer.json
index 2e9a8f2..1adbc3e 100644
--- a/composer.json
+++ b/composer.json
@@ -14,5 +14,7 @@
         }
     ],
     "minimum-stability": "stable",
-    "require": {}
+    "require": {
+        "potter/container": "^0.0.1"
+    }
 }