diff --git a/matrix_appservice_kakaotalk/kt/client/client.py b/matrix_appservice_kakaotalk/kt/client/client.py
index d502ccc..387f434 100644
--- a/matrix_appservice_kakaotalk/kt/client/client.py
+++ b/matrix_appservice_kakaotalk/kt/client/client.py
@@ -44,6 +44,7 @@ from ..types.client.client_session import LoginResult
 from ..types.chat import Chatlog, KnownChatType
 from ..types.chat.attachment import MentionStruct, ReplyAttachment
 from ..types.oauth import OAuthCredential, OAuthInfo
+from ..types.openlink.open_link_user_info import OpenLinkChannelUserInfo
 from ..types.packet.chat.kickout import KnownKickoutType, KickoutRes
 from ..types.request import (
     deserialize_result,
@@ -402,6 +403,11 @@ class Client:
             str(data["channelType"]),
         )
 
+    async def _on_profile_changed(self, data: dict[str, JSON]) -> None:
+        await self.user.on_profile_changed(
+            OpenLinkChannelUserInfo.deserialize(data["info"]),
+        )
+
     """ TODO
     async def _on_receipt(self, data: Dict[str, JSON]) -> None:
         await self.user.on_receipt(Receipt.deserialize(data["receipt"]))
@@ -430,6 +436,7 @@ class Client:
     def _start_listen(self) -> None:
         self._add_event_handler("chat", self._on_chat)
         self._add_event_handler("chat_deleted", self._on_chat_deleted)
+        self._add_event_handler("profile_changed", self._on_profile_changed)
         # TODO many more listeners
         self._add_event_handler("disconnected", self._on_listen_disconnect)
         self._add_event_handler("switch_server", self._on_switch_server)
diff --git a/matrix_appservice_kakaotalk/user.py b/matrix_appservice_kakaotalk/user.py
index 0a8d544..34e96a1 100644
--- a/matrix_appservice_kakaotalk/user.py
+++ b/matrix_appservice_kakaotalk/user.py
@@ -46,11 +46,13 @@ from .kt.types.chat.chat import Chatlog
 from .kt.types.client.client_session import LoginDataItem, LoginResult
 from .kt.types.oauth import OAuthCredential
 from .kt.types.openlink.open_channel_info import OpenChannelData, OpenChannelInfo
+from .kt.types.openlink.open_link_user_info import OpenLinkChannelUserInfo
 from .kt.types.packet.chat.kickout import KnownKickoutType, KickoutRes
 
 METRIC_CONNECT_AND_SYNC = Summary("bridge_connect_and_sync", "calls to connect_and_sync")
 METRIC_CHAT = Summary("bridge_on_chat", "calls to on_chat")
 METRIC_CHAT_DELETED = Summary("bridge_on_chat_deleted", "calls to on_chat_deleted")
+METRIC_PROFILE_CHANGE = Summary("bridge_on_profile_changed", "calls to on_profile_changed")
 METRIC_LOGGED_IN = Gauge("bridge_logged_in", "Users logged into the bridge")
 METRIC_CONNECTED = Gauge("bridge_connected", "Bridge users connected to KakaoTalk")
 
@@ -701,6 +703,12 @@ class User(DBUser, BaseUser):
             puppet = await pu.Puppet.get_by_ktid(sender_id)
             await portal.handle_kakaotalk_chat_delete(puppet, chat_id, timestamp)
 
+    @async_time(METRIC_PROFILE_CHANGE)
+    async def on_profile_changed(self, info: OpenLinkChannelUserInfo) -> None:
+        puppet = await pu.Puppet.get_by_ktid(info.userId)
+        if puppet:
+            await puppet.update_info_from_participant(self, info)
+
     # TODO Many more handlers
 
     # endregion
diff --git a/node/src/client.js b/node/src/client.js
index f791513..894346b 100644
--- a/node/src/client.js
+++ b/node/src/client.js
@@ -121,6 +121,17 @@ class UserClient {
 		})
 		*/
 
+		this.#talkClient.on("profile_changed", (channel, lastInfo, user) => {
+			this.log(`Profile of ${user.userId} changed (channel: ${channel})`)
+			return this.write("profile_changed", {
+				info: user,
+				/* TODO Is this ever a per-channel profile change?
+				channelId: channel.channelId,
+				channelType: channel.info.type,
+				*/
+			})
+		})
+
 		this.#talkClient.on("disconnected", (reason) => {
 			this.log(`Disconnected (reason=${reason})`)
 			this.disconnect()