diff --git a/composer.json b/composer.json
index 0f71c16..f20dc69 100644
--- a/composer.json
+++ b/composer.json
@@ -22,8 +22,7 @@
   "require": {
     "php": ">=5.4",
     "cakephp/cakephp": "~3.1",
-    "composer/installers": "~1.0",
-    "psy/psysh": "@stable"
+    "composer/installers": "~1.0"
   },
   "require-dev": {
     "phpunit/phpunit": "~4.1",