diff --git a/composer.json b/composer.json
index 637f7e6f..d1500aa2 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,7 @@
         }
     },
     "require": {
-        "php": ">=5.3.3",
+        "php": ">=5.3.23",
         "zendframework/zend-escaper": "self.version",
         "zendframework/zend-stdlib": "self.version"
     },