diff --git a/README.md b/README.md
index 9e0b677..e03955d 100644
--- a/README.md
+++ b/README.md
@@ -117,7 +117,7 @@ __NOTE 2:__ Once reset is complete, remember to set the `resetAll` setting back
 The script provides an active connection to the ADT Pulse portal. Here is a list of must-knows, just in case you might want to debug (or improve) the plugin:
 
 1. Device and zone statuses will be fetched every __3 seconds__. If logins have failed more than 2 times, portal sync will pause for 10 minutes.
-2. Supported versions are `18.0.0-78` and `19.0.0-89`. If this plugin does not support either version, a warning will appear in the logs. Please [submit an issue](https://github.com/mrjackyliang/homebridge-adt-pulse/issues/new/choose) to let me know!
+2. Supported versions are `19.0.0-89` and `20.0.0-221`. If this plugin does not support either version, a warning will appear in the logs. Please [submit an issue](https://github.com/mrjackyliang/homebridge-adt-pulse/issues/new/choose) to let me know!
 
 ## Credits and Appreciation
 If you would like to show your appreciation for its continued development, you can optionally become my supporter on [GitHub Sponsors](https://github.com/sponsors/mrjackyliang) or [Patreon](https://www.patreon.com/mrjackyliang)!
diff --git a/index.js b/index.js
index 01c709d..1fdc05e 100644
--- a/index.js
+++ b/index.js
@@ -822,7 +822,7 @@ ADTPulsePlatform.prototype.portalSync = function portalSync() {
       .login()
       .then((response) => {
         const version = _.get(response, 'info.version');
-        const supportedVersion = ['18.0.0-78', '19.0.0-89'];
+        const supportedVersion = ['19.0.0-89', '20.0.0-221'];
 
         if (version !== undefined && !supportedVersion.includes(version) && version !== this.sessionVersion) {
           this.logMessage(`Web Portal version ${version} detected. Test plugin to ensure system compatibility...`, 20);
diff --git a/package.json b/package.json
index 9bdd478..f081019 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
     "name": "homebridge-adt-pulse",
     "displayName": "Homebridge ADT Pulse",
-    "version": "1.8.11",
+    "version": "1.8.12",
     "description": "Homebridge security system platform for ADT Pulse",
     "main": "index.js",
     "private": false,