diff --git a/composer.json b/composer.json
index e4900c6..7e41de9 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,8 @@
         }
     ],
     "require": {
-        "yiisoft/yii2": "~2.0.0"
+        "yiisoft/yii2": "~2.0.0",
+        "predis/predis": "^2.3"
     },
     "autoload": {
         "psr-4": {