diff --git a/composer.json b/composer.json
index 9c284c3..3012b7c 100644
--- a/composer.json
+++ b/composer.json
@@ -14,30 +14,30 @@
         "issues": "https://github.com/Icinga/icingaweb2-module-reactbundle/issues"
     },
     "require": {
-        "php": ">=5.4.0",
+        "php": ">=5.6.3",
         "ext-curl": "*",
-        "clue/block-react": "^1.2",
-        "clue/buzz-react": "^2.3",
+        "clue/block-react": "^1.3",
+        "clue/buzz-react": "^2.5",
         "clue/connection-manager-extra": "^1.1",
-        "clue/http-proxy-react": "^1.2",
-        "clue/mq-react": "^1.0",
-        "clue/redis-react": "^2",
-        "clue/soap-react": "^0.2.0",
-        "clue/socket-raw": "~1.2",
-        "clue/socks-react": "^0.8",
+        "clue/http-proxy-react": "^1.4",
+        "clue/mq-react": "^1.1",
+        "clue/redis-react": "^2.3",
+        "clue/soap-react": "^1.0",
+        "clue/socket-raw": "^1.4",
+        "clue/socks-react": "^1.0",
         "evenement/evenement": "^2",
         "predis/predis": "^1.1",
         "psr/http-message": "^1",
-        "react/child-process": "^0.5",
+        "react/child-process": "^0.6",
         "react/datagram": "^1.4",
         "react/dns": "^0.4",
-        "react/event-loop": "^1.0",
+        "react/event-loop": "^1.1",
         "react/http": "^0.8",
         "react/http-client": "^0.5",
         "react/promise": "^2.7",
         "react/promise-timer": "^1.5",
-        "react/socket": "^1.0",
-        "react/stream": "^1.0"
+        "react/socket": "^1.2",
+        "react/stream": "^1.1"
     },
     "require-dev": {
     }