diff --git a/composer.json b/composer.json
index e4dbf0e..4ce9f45 100644
--- a/composer.json
+++ b/composer.json
@@ -6,7 +6,7 @@
     "PHP","PHP Framework"
   ],
   "require":{
-    "php":">=5.3.0",
+    "php":">=5.4.0",
     "filp/whoops":"*",
     "symfony/var-dumper":"*",
     "catfan/medoo":"*",