diff --git a/data/web/telegram.org/js/telegram-web-app.js b/data/web/telegram.org/js/telegram-web-app.js
index 8d09ad9b3b..ae8c40c807 100644
--- a/data/web/telegram.org/js/telegram-web-app.js
+++ b/data/web/telegram.org/js/telegram-web-app.js
@@ -1174,7 +1174,7 @@
       }
       receiveWebViewEvent('biometricManagerUpdated');
     }
-    function onBiometryAuthRequested() {
+    function onBiometryAuthRequested(eventType, eventData) {
       var isAuthenticated = (eventData.status == 'authorized'),
           biometricToken = eventData.token || '';
       if (authRequestState) {
@@ -1191,7 +1191,7 @@
         isAuthenticated: false
       });
     }
-    function onBiometryTokenUpdated() {
+    function onBiometryTokenUpdated(eventType, eventData) {
       var applied = false;
       if (isBiometricAvailable &&
           isAccessRequested) {
@@ -1285,7 +1285,7 @@
       WebView.postEvent('web_app_biometry_request_auth', false);
       return biometricManager;
     };
-    biometricManager.saveBiometricToken = function(token, callback) {
+    biometricManager.updateBiometricToken = function(token, callback) {
       if (!checkVersion()) {
         return biometricManager;
       }
diff --git a/data/web/webappcontent.telegram.org/cafe.html b/data/web/webappcontent.telegram.org/cafe.html
index 87e87ec127..1fd959f173 100644
--- a/data/web/webappcontent.telegram.org/cafe.html
+++ b/data/web/webappcontent.telegram.org/cafe.html
@@ -9,7 +9,7 @@
     <meta name="MobileOptimized" content="176" />
     <meta name="HandheldFriendly" content="True" />
     <meta name="robots" content="noindex, nofollow" />
-    <script src="https://tg.dev/js/telegram-web-app.js?42"></script>
+    <script src="https://tg.dev/js/telegram-web-app.js?43"></script>
     <script>
       function setThemeClass() {
         document.documentElement.className = Telegram.WebApp.colorScheme;
diff --git a/data/web/webappcontent.telegram.org/demo.html b/data/web/webappcontent.telegram.org/demo.html
index fcae19153d..26f5020d91 100644
--- a/data/web/webappcontent.telegram.org/demo.html
+++ b/data/web/webappcontent.telegram.org/demo.html
@@ -8,7 +8,7 @@
     <meta name="MobileOptimized" content="176" />
     <meta name="HandheldFriendly" content="True" />
     <meta name="robots" content="noindex,nofollow" />
-    <script src="https://tg.dev/js/telegram-web-app.js?42"></script>
+    <script src="https://tg.dev/js/telegram-web-app.js?43"></script>
     <script>
       function setThemeClass() {
         document.documentElement.className = Telegram.WebApp.colorScheme;
@@ -151,7 +151,7 @@
   <div class="viewport-stable_border"></div>
     <script src="/js/jquery.min.js"></script>
     <script src="https://tg.dev/js/bootstrap.min.js"></script>
-    <script src="/js/webappdemo.js?23"></script>
+    <script src="/js/webappdemo.js?24"></script>
     <script>DemoApp.apiUrl = "/demo/api";
 
 Telegram.WebApp.onEvent('themeChanged', function() {
diff --git a/data/web/webappcontent.telegram.org/js/webappdemo.js b/data/web/webappcontent.telegram.org/js/webappdemo.js
index 1f3459cb34..c7dc3a6c1c 100644
--- a/data/web/webappcontent.telegram.org/js/webappdemo.js
+++ b/data/web/webappcontent.telegram.org/js/webappdemo.js
@@ -321,6 +321,7 @@ var DemoApp = {
     if (!biometricManager.isInited) {
       return DemoApp.showAlert('Biometric not inited yet!');
     }
+    $(el).next('span').text('').attr('class', '');
     biometricManager.authenticate(function(success, token) {
       if (success) {
         $(el).next('span').text('(Success, token: ' + token + ')').attr('class', 'ok');
@@ -337,6 +338,7 @@ var DemoApp = {
     var token = parseInt(Math.random().toString().substr(2)).toString(16);
     biometricManager.updateBiometricToken(token, function(updated) {
       if (updated) {
+        $('#bm_token_saved').text(biometricManager.isBiometricTokenSaved ? 'true' : 'false');
         $(el).next('span').text('(Updated)').attr('class', 'ok');
       } else {
         $(el).next('span').text('(Failed)').attr('class', 'err');
@@ -350,6 +352,7 @@ var DemoApp = {
     }
     biometricManager.updateBiometricToken('', function(updated) {
       if (updated) {
+        $('#bm_token_saved').text(biometricManager.isBiometricTokenSaved ? 'true' : 'false');
         $(el).next('span').text('(Removed)').attr('class', 'ok');
       } else {
         $(el).next('span').text('(Failed)').attr('class', 'err');