diff --git a/composer.json b/composer.json
index 3cf9682..d6cd0fd 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,7 @@
     }
   ],
   "require": {
-    "php": ">=5.4.0",
+    "php": ">=5.5.0",
     "ext-pdo": "*",
     "ext-json": "*"
   },
diff --git a/src/Pdox.php b/src/Pdox.php
index 783b88f..97f11f9 100644
--- a/src/Pdox.php
+++ b/src/Pdox.php
@@ -22,7 +22,7 @@ class Pdox implements PdoxInterface
      *
      * @var string
      */
-    const VERSION = '1.4.1';
+    const VERSION = '1.4.2';
 
     /**
      * @var PDO|null