diff --git a/composer.json b/composer.json
index 65812b7..b27527b 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,7 @@
         }
     ],
     "require": {
-        "php": ">=5.3.0,<6.0.0"
+        "php": "~5.3 || ~7.0"
     },
     "require-dev": {
         "zyberspace/discovery-shell": "dev-master"