diff --git a/modules/datamodels/datamodelChatbot.py b/modules/datamodels/datamodelChatbot.py
index 243eb02c..04ac0788 100644
--- a/modules/datamodels/datamodelChatbot.py
+++ b/modules/datamodels/datamodelChatbot.py
@@ -11,7 +11,6 @@ class MessageItem(BaseModel, ModelMixin):
 
     role: str = Field(..., description="Message role (user or assistant)")
     content: str = Field(..., description="Message content")
-    timestamp: float = Field(..., description="Message timestamp (Unix timestamp)")
 
 
 class ChatMessageRequest(BaseModel, ModelMixin):
@@ -70,7 +69,6 @@ register_model_labels(
     {
         "role": {"en": "Role", "fr": "Rôle"},
         "content": {"en": "Content", "fr": "Contenu"},
-        "timestamp": {"en": "Timestamp", "fr": "Horodatage"},
     },
 )
 
diff --git a/modules/features/chatBot/service.py b/modules/features/chatBot/service.py
index 8fb35106..e9a9b360 100644
--- a/modules/features/chatBot/service.py
+++ b/modules/features/chatBot/service.py
@@ -365,7 +365,6 @@ async def post_message(
         item = MessageItem(
             role=role,
             content=msg.content.strip(),
-            timestamp=0.0,  # TODO: Add proper timestamp handling
         )
         messages.append(item)
 
@@ -457,7 +456,6 @@ async def post_message_stream(
                                 MessageItem(
                                     role=role,
                                     content=content,
-                                    timestamp=0.0,  # TODO: Add proper timestamp handling
                                 )
                             )
 
@@ -526,7 +524,6 @@ async def get_thread_messages_from_langgraph(
             {
                 "role": ROLE_MAP.get(msg.type, msg.type),
                 "content": content,
-                "timestamp": 0.0,
             }
         )