diff --git a/io/serialport/25-serial.js b/io/serialport/25-serial.js
index 6bd45fab..64093ceb 100644
--- a/io/serialport/25-serial.js
+++ b/io/serialport/25-serial.js
@@ -271,7 +271,7 @@ module.exports = function(RED) {
                                 if (addchar !== "") { payload += addchar; }
                             }
                             else if (addchar !== "") {
-                                payload = Buffer.concat([payload,addchar]);
+                                payload = Buffer.concat([payload,Buffer.from(addchar)]);
                             }
                             return payload;
                         },
diff --git a/io/serialport/package.json b/io/serialport/package.json
index 22d65481..1ec5dbdf 100644
--- a/io/serialport/package.json
+++ b/io/serialport/package.json
@@ -1,9 +1,9 @@
 {
     "name"          : "node-red-node-serialport",
-    "version"       : "1.0.1",
+    "version"       : "1.0.2",
     "description"   : "Node-RED nodes to talk to serial ports",
     "dependencies"  : {
-        "serialport"   : "^10.3.0"
+        "serialport"   : "^10.5.0"
     },
     "repository" : {
         "type":"git",
@@ -21,7 +21,7 @@
     "engines" : { "node" : ">=12.0.0" },
     "author": {
         "name": "Dave Conway-Jones",
-        "email": "ceejay@vnet.ibm.com",
+        "email": "dceejay@gmail.com",
         "url": "http://nodered.org"
     }
 }