diff --git a/.env.example b/.env.example
index 0995196..314aa07 100644
--- a/.env.example
+++ b/.env.example
@@ -7,7 +7,7 @@ SAGE_GATEWAY_URL=http://192.168.1.50:8100
 SAGE_GATEWAY_TOKEN=4e8f9c2a7b1d5e3f9a0c8b7d6e5f4a3b2c1d0e9f8a7b6c5d4e3f2a1b0c9d8e7f
 
 # === Base de données ===
-DATABASE_URL=sqlite+aiosqlite:///./sage_dataven.db
+DATABASE_URL=sqlite+aiosqlite:///./data/sage_dataven.db
 
 # === SMTP ===
 SMTP_HOST=smtp.office365.com
diff --git a/api.py b/api.py
index b11a450..6a0dc37 100644
--- a/api.py
+++ b/api.py
@@ -1,7 +1,7 @@
 from fastapi import FastAPI, HTTPException, Query, Depends, status
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.responses import StreamingResponse
-from pydantic import BaseModel, Field, EmailStr
+from pydantic import BaseModel, Field, EmailStr, validator, field_validator
 from typing import List, Optional, Dict
 from datetime import date, datetime
 from enum import Enum
@@ -98,7 +98,7 @@ class LigneDevis(BaseModel):
     prix_unitaire_ht: Optional[float] = None
     remise_pourcentage: Optional[float] = 0.0
     
-    @validator("article_code", pre=True)
+    @field_validator("article_code", mode="before")
     def strip_insecables(cls, v):
         return v.replace("\xa0", "").strip()
 
diff --git a/config.py b/config.py
index bc36e64..7e1c020 100644
--- a/config.py
+++ b/config.py
@@ -27,7 +27,7 @@ class Settings(BaseSettings):
     frontend_url: str
 
     # === Base de données ===
-    database_url: str = "sqlite+aiosqlite:///./sage_dataven.db"
+    database_url: str = "sqlite+aiosqlite:///./data/sage_dataven.db"
 
     # === SMTP ===
     smtp_host: str
diff --git a/database/db_config.py b/database/db_config.py
index 0bbba98..1973799 100644
--- a/database/db_config.py
+++ b/database/db_config.py
@@ -6,7 +6,7 @@ import logging
 
 logger = logging.getLogger(__name__)
 
-DATABASE_URL = os.getenv("DATABASE_URL", "sqlite+aiosqlite:///./sage_dataven.db")
+DATABASE_URL = os.getenv("DATABASE_URL", "sqlite+aiosqlite:///./data/sage_dataven.db")
 
 engine = create_async_engine(
     DATABASE_URL,