diff --git a/package.json b/package.json
index 9bd5b52..ed47ea6 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
 				"light control"
 		],
 		"dependencies": {
-				"serialport": "2.0.x",
+				"serialport": "2.1.x",
 				"socket.io":  "0.9.x",
 				"connect":    "2.11.x",
 				"express":    "3.4.x",