diff --git a/app/.DS_Store b/app/.DS_Store
index 3a0254a..8a412a3 100644
Binary files a/app/.DS_Store and b/app/.DS_Store differ
diff --git a/app/api/endpoints/knowledge_base.py b/app/api/endpoints/knowledge_base.py
index bfc40b4..9bc9154 100644
--- a/app/api/endpoints/knowledge_base.py
+++ b/app/api/endpoints/knowledge_base.py
@@ -1,6 +1,6 @@
 from fastapi import APIRouter, Depends, HTTPException, BackgroundTasks
 from typing import Optional, List
-from app.models.models import KnowledgeBase, KnowledgeBaseListResponse, CreateKnowledgeBaseRequest, Tag
+from app.models.models import KnowledgeBase, KnowledgeBaseListResponse, CreateKnowledgeBaseRequest, UpdateKnowledgeBaseRequest, Tag
 from app.core.database import get_db_connection
 from app.core.auth import get_current_user
 from app.core.response import create_api_response
@@ -198,6 +198,46 @@ def get_knowledge_base_detail(
 
         return kb_data
 
+@router.put("/knowledge-bases/{kb_id}")
+def update_knowledge_base(
+    kb_id: int,
+    request: UpdateKnowledgeBaseRequest,
+    current_user: dict = Depends(get_current_user)
+):
+    with get_db_connection() as connection:
+        cursor = connection.cursor(dictionary=True)
+
+        # Check if knowledge base exists and user has permission
+        cursor.execute(
+            "SELECT kb_id, creator_id FROM knowledge_bases WHERE kb_id = %s",
+            (kb_id,)
+        )
+        kb = cursor.fetchone()
+
+        if not kb:
+            raise HTTPException(status_code=404, detail="Knowledge base not found")
+
+        if kb['creator_id'] != current_user['user_id']:
+            raise HTTPException(status_code=403, detail="Only the creator can update this knowledge base")
+
+        # Update the knowledge base
+        now = datetime.datetime.utcnow()
+        update_query = """
+            UPDATE knowledge_bases
+            SET title = %s, content = %s, tags = %s, updated_at = %s
+            WHERE kb_id = %s
+        """
+        cursor.execute(update_query, (
+            request.title,
+            request.content,
+            request.tags,
+            now,
+            kb_id
+        ))
+        connection.commit()
+
+        return {"message": "Knowledge base updated successfully"}
+
 @router.delete("/knowledge-bases/{kb_id}")
 def delete_knowledge_base(
     kb_id: int,
diff --git a/app/models/models.py b/app/models/models.py
index f0ff74d..bfd1219 100644
--- a/app/models/models.py
+++ b/app/models/models.py
@@ -127,9 +127,12 @@ class KnowledgeBase(BaseModel):
     creator_caption: str # To show in the UI
     is_shared: bool
     source_meeting_ids: Optional[str] = None
+    user_prompt: Optional[str] = None
     tags: Optional[List[Tag]] = []
     created_at: datetime.datetime
     updated_at: datetime.datetime
+    source_meeting_count: Optional[int] = 0
+    created_by_name: Optional[str] = None
 
 class KnowledgeBaseTask(BaseModel):
     task_id: str
@@ -150,6 +153,11 @@ class CreateKnowledgeBaseRequest(BaseModel):
     source_meeting_ids: Optional[str] = None
     tags: Optional[str] = None
 
+class UpdateKnowledgeBaseRequest(BaseModel):
+    title: str
+    content: Optional[str] = None
+    tags: Optional[str] = None
+
 class KnowledgeBaseListResponse(BaseModel):
     kbs: List[KnowledgeBase]
     total: int