diff --git a/composer.json b/composer.json
index bea623a..ba6d7b3 100644
--- a/composer.json
+++ b/composer.json
@@ -2,8 +2,8 @@
     "name": "clue/stdio-react",
     "description": "Async standard console input & output (STDIN, STDOUT)",
     "require": {
-        "react/event-loop": "0.3.*",
-        "react/stream": "0.3.*"
+        "react/event-loop": "0.3.*|0.4.*",
+        "react/stream": "0.3.*|0.4.*"
     },
     "license": "MIT",
     "authors": [
diff --git a/composer.lock b/composer.lock
index 08e298f..8abcb1b 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at http://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "hash": "12f1da5326156283921bb62088bd70b1",
+    "hash": "9204e579e00ea3f5a463c4eea36bb045",
     "packages": [
         {
             "name": "evenement/evenement",