diff --git a/aiogram/types/message.py b/aiogram/types/message.py
index c1536696..5b267a6b 100644
--- a/aiogram/types/message.py
+++ b/aiogram/types/message.py
@@ -663,6 +663,9 @@ class ContentType(helper.Helper):
     :key: LEFT_CHAT_MEMBER
     :key: INVOICE
     :key: SUCCESSFUL_PAYMENT
+    :key: CONNECTED_WEBSITE
+    :key: UNKNOWN
+    :key: ANY
     """
     mode = helper.HelperMode.snake_case