From: Dominik George <natureshadow@debian.org>
Subject: Fix dependencies for Debian packages.
--- a/composer.json
+++ b/composer.json
@@ -5,11 +5,11 @@
     "license": "MIT",
     "require": {
         "php": ">=5.3.0",
-        "react/cache": "^0.5 || ^0.4 || ^0.3",
-        "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/stream": "^1.0 || ^0.7 || ^0.6 || ^0.5 || ^0.4.5"
+        "react/cache": "^0.4",
+        "react/event-loop": "^0.5",
+        "react/promise": "~2.0",
+        "react/promise-timer": "~1.0",
+        "react/stream": "^0.7"
     },
     "require-dev": {
         "clue/block-react": "^1.2",