diff --git a/package.json b/package.json
index c4bd685..763fda6 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
   "dependencies": {
     "browser-serialport": "latest",
     "es6-shim": "latest",
-    "serialport": "^6.0.4"
+    "serialport": "~6.0.4"
   },
   "scripts": {
     "test": "grunt",