diff --git a/composer.json b/composer.json
index 8380a11e..0856765d 100644
--- a/composer.json
+++ b/composer.json
@@ -9,10 +9,10 @@
         "react/event-loop": "^1.0 || ^0.5 || ^0.4 || ^0.3.5",
         "react/promise": "^2.1 || ^1.2.1",
         "react/promise-timer": "^1.2",
-        "react/socket": "^1.0 || ^0.8 || ^0.7 || ^0.6 || ^0.5 || ^0.4.4",
         "react/stream": "^1.0 || ^0.7 || ^0.6 || ^0.5 || ^0.4.5"
     },
     "require-dev": {
+        "react/socket": "^1.0 || ^0.8",
         "clue/block-react": "^1.2",
         "phpunit/phpunit": "^5.0 || ^4.8.10"
     },