diff --git a/.vscode/ipch/40f34ea280040acc/WEMOS_D1_MINI.ipch b/.vscode/ipch/40f34ea280040acc/WEMOS_D1_MINI.ipch
index a75e31f..aafe3e0 100644
Binary files a/.vscode/ipch/40f34ea280040acc/WEMOS_D1_MINI.ipch and b/.vscode/ipch/40f34ea280040acc/WEMOS_D1_MINI.ipch differ
diff --git a/bin/core/core.a b/bin/core/core.a
index cdfeee0..7885714 100644
Binary files a/bin/core/core.a and b/bin/core/core.a differ
diff --git a/node/package.json b/node/package.json
index ad85fe9..2597e47 100644
--- a/node/package.json
+++ b/node/package.json
@@ -1,6 +1,6 @@
 {
   "name": "wiot",
-  "version": "0.0.15",
+  "version": "0.0.16",
   "description": "An awesome iot system for web developers~",
   "main": "wiot.js",
   "scripts": {
diff --git a/node/wiot.js b/node/wiot.js
index 738db4b..ee8a0a2 100644
--- a/node/wiot.js
+++ b/node/wiot.js
@@ -2,7 +2,7 @@
  * @Author: IoTcat (https://iotcat.me) 
  * @Date: 2019-05-04 18:59:49 
  * @Last Modified by: IoTcat
- * @Last Modified time: 2019-05-06 23:23:02
+ * @Last Modified time: 2019-05-10 20:33:35
  */
 var wiot_client = function (o_params) {
     var o = {
@@ -231,7 +231,7 @@ var wiot_client = function (o_params) {
     };
 
     var checkVersion = () => {
-        request('https://wiot.yimian.xyz/ota/check.php?version=' + o.version, (err, res, body) => {
+        request('https://wiot.yimian.xyz/ota/check.php?version=' + o.version + '&MAC=' + o.MAC, (err, res, body) => {
             if (!err && res.statusCode == 200) {
                 if (JSON.parse(body).update) {
                     if (o.hint) console.log('wIoT - ' + o.MAC + ': New Version Available!! OTA Updating..');