diff --git a/composer.json b/composer.json
index 5cd9bf0..0e6cb1f 100644
--- a/composer.json
+++ b/composer.json
@@ -26,7 +26,7 @@
   ],
   "require": {
     "php": ">=5.3.0",
-    "voku/arrayy": "1.*",
+    "voku/arrayy": "2.*",
     "voku/simple-cache": "2.*",
     "voku/portable-utf8": "2.*"
   },