diff --git a/composer.json b/composer.json
index c7028c1..7794f3c 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 || ^0.6"
     },
     "require-dev": {
-        "react/event-loop": " ^0.4 || ^0.3",
-        "phpunit/phpunit": "^6.0 || ^5.7 || ^4.8.35",
-        "react/stream": "^1.0 || ^0.7 || ^0.6"
+        "react/event-loop": "^1.0 || ^0.5 || ^0.4 || ^0.3",
+        "phpunit/phpunit": "^6.0 || ^5.7 || ^4.8.35"
     }
 }