diff --git a/composer.json b/composer.json
index 33c5041..63a9c6d 100644
--- a/composer.json
+++ b/composer.json
@@ -15,11 +15,10 @@
     },
     "require": {
         "php": ">=5.3",
-        "react/stream": "^1.0 || ^0.7 || ^0.6 || ^0.5 || ^0.4 || ^0.3"
+        "react/stream": "^1.0 || ^0.7"
     },
     "require-dev": {
         "phpunit/phpunit": "^5.0 || ^4.8",
-        "react/event-loop": "^0.4 || ^0.3",
-        "react/stream": "^1.0 || ^0.7"
+        "react/event-loop": "^1.0 || ^0.5 || ^0.4 || ^0.3"
     }
 }