diff --git a/composer.json b/composer.json
index c973cc8..9b57826 100644
--- a/composer.json
+++ b/composer.json
@@ -3,7 +3,9 @@
     "type": "library",
     "require": {
         "php": "^8.4",
-        "potter/cloneable": "dev-main"
+        "potter/cloneable": "dev-main",
+        "potter/throwable": "dev-main",
+        "psr/container": "^2.0@dev"
     },
     "license": "MIT",
     "autoload": {