diff --git a/composer.json b/composer.json
index 159b281..3270bc7 100644
--- a/composer.json
+++ b/composer.json
@@ -17,6 +17,7 @@
     "require": {
         "graham-campbell/result-type": ">=1.1.4",
         "phpoption/phpoption": ">=1.9.5",
+        "potter/container": ">=0.0.1",
         "symfony/polyfill-ctype": ">=1.37.0",
         "symfony/polyfill-mbstring": ">=1.38.2",
         "symfony/polyfill-php80": ">=1.37.0",