diff --git a/composer.json b/composer.json
index d396d9f..a070212 100644
--- a/composer.json
+++ b/composer.json
@@ -24,7 +24,7 @@
     }
   , "require": {
         "php": ">=5.3.9"
-      , "react/socket": "^0.5"
+      , "react/socket": "^0.7 || ^0.6 || ^0.5"
       , "guzzle/http": "^3.6"
       , "symfony/http-foundation": "^2.2|^3.0"
       , "symfony/routing": "^2.2|^3.0"