diff --git a/plexpy/notification_handler.py b/plexpy/notification_handler.py
index 9a662e2c..b8a4b902 100644
--- a/plexpy/notification_handler.py
+++ b/plexpy/notification_handler.py
@@ -1375,12 +1375,16 @@ def strip_tag(data, agent_id=None):
         data = bleach.clean(data, tags=whitelist.keys(), attributes=whitelist, strip=True)
 
     elif agent_id == 13:
-        # Allow tags b, i, code, pre, a[href] for Telegram
-        whitelist = {'b': [],
-                     'i': [],
-                     'code': [],
-                     'pre': [],
-                     'a': ['href']}
+        # Allow tags for Telegram
+        # https://core.telegram.org/bots/api#html-style
+        whitelist = {'b': [], 'strong': [],
+                     'i': [], 'em': [],
+                     'u': [], 'ins': [],
+                     's': [], 'strike': [], 'del': [],
+                     'span': ['class'], 'tg-spoiler': [],
+                     'a': ['href'],
+                     'code': ['class'],
+                     'pre': []}
         data = bleach.clean(data, tags=whitelist.keys(), attributes=whitelist, strip=True)
 
     elif agent_id in (10, 14, 20, 25):
diff --git a/plexpy/notifiers.py b/plexpy/notifiers.py
index 1c8bf0fb..42df413d 100644
--- a/plexpy/notifiers.py
+++ b/plexpy/notifiers.py
@@ -3963,7 +3963,9 @@ class TELEGRAM(Notifier):
                          {'label': 'Enable HTML Support',
                           'value': self.config['html_support'],
                           'name': 'telegram_html_support',
-                          'description': 'Style your messages using these HTML tags: b, i, a[href], code, pre.',
+                          'description': 'Enable to style your messages using these HTML tags:<br>'
+                                         'b, strong, i, em, u, ins, s, strike, del, span[class], '
+                                         'tg-spoiler, a[href], code[class], pre',
                           'input_type': 'checkbox'
                           },
                          {'label': 'Disable Web Page Previews',