diff --git a/jupyter_collaboration/__init__.py b/jupyter_collaboration/__init__.py
index b93a0ce5..b8324675 100644
--- a/jupyter_collaboration/__init__.py
+++ b/jupyter_collaboration/__init__.py
@@ -4,7 +4,7 @@
 from typing import Any, Dict, List
 
 from ._version import __version__  # noqa
-from .app import CollaborativeChatExtension, YDocExtension
+from .app import YDocExtension
 
 def _jupyter_labextension_paths():
     return [{"src": "labextension", "dest": "@jupyter/collaboration-extension"}]
@@ -13,5 +13,4 @@ def _jupyter_labextension_paths():
 def _jupyter_server_extension_points() -> List[Dict[str, Any]]:
     return [
         {"module": "jupyter_collaboration", "app": YDocExtension},
-        {"module": "jupyter_chat", "app": CollaborativeChatExtension},
     ]
diff --git a/jupyter_collaboration/app.py b/jupyter_collaboration/app.py
index 751f9da3..27c78a6c 100644
--- a/jupyter_collaboration/app.py
+++ b/jupyter_collaboration/app.py
@@ -7,10 +7,8 @@
 from jupyter_server.extension.application import ExtensionApp
 from pycrdt_websocket.ystore import BaseYStore
 from traitlets import Bool, Float, Type
-from jupyter_chat import ChatExtension
-from jupyter_chat.handlers import GlobalConfigHandler, ChatHistoryHandler
 
-from .handlers import CollaborativeChatHandler, DocSessionHandler, YDocWebSocketHandler
+from .handlers import DocSessionHandler, YDocWebSocketHandler
 from .loaders import FileLoaderMapping
 from .stores import SQLiteYStore
 from .utils import EVENTS_SCHEMA_PATH
@@ -122,15 +120,3 @@ async def stop_extension(self):
             ],
             timeout=3,
         )
-
-
-class CollaborativeChatExtension(ChatExtension):
-
-    def initialize_handlers(self):
-        self.handlers.extend([
-            (fr"{self.base_url}?", CollaborativeChatHandler),
-            (fr"{self.base_url}config/?", GlobalConfigHandler),
-            (fr"{self.base_url}history/?", ChatHistoryHandler)
-        ])
-
-        self.log.debug("Collaborative Chat Handlers initialized")
diff --git a/jupyter_collaboration/handlers.py b/jupyter_collaboration/handlers.py
index ea12cd7d..c345d01b 100644
--- a/jupyter_collaboration/handlers.py
+++ b/jupyter_collaboration/handlers.py
@@ -384,25 +384,3 @@ async def put(self, path):
         )
         self.set_status(201)
         return self.finish(data)
-
-
-class CollaborativeChatHandler(ChatHandler):
-
-    def get_chat_user(self) -> ChatUser:
-        """Retrieves the current user from collaborative context."""
-
-        names = self.current_user.name.split(" ", maxsplit=2)
-        initials = getattr(self.current_user, "initials", None)
-        if not initials:
-            # compute default initials in case IdentityProvider doesn't
-            # return initials, e.g. JupyterHub (#302)
-            names = self.current_user.name.split(" ", maxsplit=2)
-            initials = "".join(
-                [(name.capitalize()[0] if len(name) > 0 else "") for name in names]
-            )
-        chat_user_kwargs = {
-            **asdict(self.current_user),
-            "initials": initials,
-        }
-
-        return ChatUser(**chat_user_kwargs)