diff --git a/composer.json b/composer.json
index 27f42952..651d5538 100755
--- a/composer.json
+++ b/composer.json
@@ -17,6 +17,7 @@
         "php": "^5.5 || ^7.0",
         "guzzlehttp/guzzle": "^6.1",
         "zendframework/zend-filter": "^2.7",
+        "zendframework/zend-servicemanager": "^3.2",
         "zendframework/zend-validator": "^2.8"
     },
     "require-dev": {