diff --git a/package.json b/package.json
index 8ab5cbc..18f9d2e 100644
--- a/package.json
+++ b/package.json
@@ -33,12 +33,12 @@
   },
   "@std/esm": "cjs",
   "devDependencies": {
-    "@std/esm": "^0.20.0",
-    "chai": "^3.5.0",
-    "codecov": "^1.0.1",
-    "debug": "^2.6.8",
+    "@std/esm": "^0.22.0",
+    "chai": "^4.1.2",
+    "codecov": "^3.0.0",
+    "debug": "^3.1.0",
     "istanbul": "^0.4.5",
-    "mocha": "^3.4.2",
-    "nodemon": "^1.14.12"
+    "mocha": "^5.0.1",
+    "nodemon": "^1.15.1"
   }
 }
diff --git a/src/mcp230xx-packet.mjs b/src/mcp230xx-packet.mjs
index c4e370e..818a54d 100644
--- a/src/mcp230xx-packet.mjs
+++ b/src/mcp230xx-packet.mjs
@@ -17,14 +17,6 @@ const LOG_OPTS = (id) => {
 
 export default class MCP230XX extends Device {
   constructor(opts) {
-    if(opts.nmcp) {
-      if (typeof opts.nmcp.path!=='string') opts.nmcp = {path: (process.env.SOCKETS_DIR || __dirname)  + '/mcp.sock'}
-      opts.sockets = (opts.sockets ? (opts.sockets+',') : '') + 'nmcp#s>n'
-    }
-    if(opts.tmcp) {
-      if (typeof opts.nmcp.port!=='number') opts.tmcp.port = 1776
-      opts.sockets = (opts.sockets ? (opts.sockets+',') : '') + 'tmcp#s>t'
-    }
     super(opts)
     log = logger.child(LOG_OPTS(this.id))
     if (!opts.address) log.fatal({opts:opts},'no i2c bus address supplied' )
@@ -36,18 +28,9 @@ export default class MCP230XX extends Device {
 
   async init(){
     await super.init()
-    // let res = await this.chip.ack.bind(this)() // move this to device class
-    // if (!res.ack) throw `no device on this bus at address ${this.address}=0x${this.address.toString(16)}`
     let res = await this.chip.cfg({})
-    // console.log(res)
     let cfg = this.chip17 ?'10100010':'00100010'
     if (res.response !==cfg ) throw `could not configure mcp chip at ${this.address}=0x${this.address.toString(16)}`
   }
 
-
-  // this overwrites the default cmd 'reply' from the bus
-  reply (packet) {
-    // console.log(packet._header.request, packet.response)
-  }
-
 } // end of MCP230XX Class