--- a/package.json
+++ b/package.json
@@ -22,8 +22,5 @@
     "type": "git",
     "url": "https://github.com/futomi/node-enocean-utils.git"
   },
-  "readmeFilename": "README.md",
-  "dependencies": {
-    "serialport": ">=5.0.0"
-  }
+  "readmeFilename": "README.md"
 }