diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index 48a4d10..fb030b9
--- a/package.json
+++ b/package.json
@@ -10,6 +10,6 @@
   "license": "GPLv3",
   "dependencies": {
     "firebase": "2.4.2",
-    "serialport": "4.0.7"
+    "serialport": "6.0.0"
   }
 }