diff --git a/composer.json b/composer.json
index 340e391..40f7df5 100644
--- a/composer.json
+++ b/composer.json
@@ -18,6 +18,6 @@
     }
   ],
   "require" : {
-    "php" : ">=5.2"
+    "php" : ">=5.4"
   }
-}
\ No newline at end of file
+}