diff --git a/composer.json b/composer.json
index af4a5766..60981776 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
         "issues": "https://github.com/brianlmoon/net_gearman/issues"
     },
     "require": {
-        "php": ">=5.2.0"
+        "php": ">=5.6.0"
     },
     "autoload": {
         "classmap": [ "Net/Gearman" ]