diff --git a/backend/app/db/models.py b/backend/app/db/models.py
index b841b7a..0e6812b 100644
--- a/backend/app/db/models.py
+++ b/backend/app/db/models.py
@@ -27,5 +27,5 @@ class Kintone(Base):
     id = Column(Integer, primary_key=True, index=True)
     type = Column(Integer, index=True, nullable=False)
     name = Column(String(100), nullable=False)   
-    desc = Column(String(500))
-    content = Column(String(2000))
\ No newline at end of file
+    desc = Column(String)
+    content = Column(String)
\ No newline at end of file
diff --git a/backend/app/main.py b/backend/app/main.py
index b792b7f..0175c69 100644
--- a/backend/app/main.py
+++ b/backend/app/main.py
@@ -10,7 +10,7 @@ from app.db import Base,engine
 from app.core.auth import get_current_active_user
 from app.core.celery_app import celery_app
 from app import tasks
-
+from fastapi.middleware.cors import CORSMiddleware
 
 Base.metadata.create_all(bind=engine) 
 
@@ -18,6 +18,19 @@ app = FastAPI(
     title=config.PROJECT_NAME, docs_url="/api/docs", openapi_url="/api"
 )
 
+origins = [
+    "http://localhost:9000",
+    "http://localhost",
+    "http://localhost:8080",
+]
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=origins,
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
 
 # @app.middleware("http")
 # async def db_session_middleware(request: Request, call_next):