diff --git a/backend/app/data/seed.py b/backend/app/data/seed.py
index 6a12991..780e8a2 100644
--- a/backend/app/data/seed.py
+++ b/backend/app/data/seed.py
@@ -6,7 +6,8 @@ import asyncio
 import json
 from pathlib import Path
 
-from sqlalchemy import select
+from sqlalchemy import select, text
+from sqlalchemy.exc import ProgrammingError
 
 from app.core.database import AsyncSessionLocal
 from app.models.shopping import Product, Store
@@ -15,27 +16,46 @@ DATA_DIR = Path(__file__).parent
 
 
 async def run_seed() -> None:
-    async with AsyncSessionLocal() as session:
-        count = await session.scalar(select(Store).limit(1))
-        if count is not None:
-            print("Seed déjà chargé — rien à faire.")
-            return
+    try:
+        async with AsyncSessionLocal() as session:
+            # Vérifier que la table existe avant de faire le seed
+            try:
+                result = await session.execute(
+                    text(
+                        "SELECT COUNT(*) FROM information_schema.tables "
+                        "WHERE table_schema = 'shopping' AND table_name = 'stores'"
+                    )
+                )
+                table_exists = result.scalar() > 0
+            except Exception:
+                table_exists = False
 
-        stores_raw = json.loads((DATA_DIR / "seed_stores.json").read_text())
-        for s in stores_raw:
-            session.add(Store(name=s["name"], location=s.get("location")))
+            if not table_exists:
+                print("Seed ignoré — les migrations Alembic n'ont pas encore été appliquées.")
+                return
 
-        products_raw = json.loads((DATA_DIR / "seed_products.json").read_text())
-        for p in products_raw:
-            session.add(Product(
-                name=p["name"],
-                category=p.get("category"),
-                default_unit=p.get("default_unit"),
-                frequency_score=p.get("frequency_score", 0),
-            ))
+            count = await session.scalar(select(Store).limit(1))
+            if count is not None:
+                print("Seed déjà chargé — rien à faire.")
+                return
 
-        await session.commit()
-        print(f"Seed : {len(stores_raw)} magasins, {len(products_raw)} produits chargés.")
+            stores_raw = json.loads((DATA_DIR / "seed_stores.json").read_text())
+            for s in stores_raw:
+                session.add(Store(name=s["name"], location=s.get("location")))
+
+            products_raw = json.loads((DATA_DIR / "seed_products.json").read_text())
+            for p in products_raw:
+                session.add(Product(
+                    name=p["name"],
+                    category=p.get("category"),
+                    default_unit=p.get("default_unit"),
+                    frequency_score=p.get("frequency_score", 0),
+                ))
+
+            await session.commit()
+            print(f"Seed : {len(stores_raw)} magasins, {len(products_raw)} produits chargés.")
+    except ProgrammingError as e:
+        print(f"Seed ignoré — tables non disponibles (migrations requises) : {e}")
 
 
 if __name__ == "__main__":
diff --git a/docker-compose.yml b/docker-compose.yml
index 7a70420..c7d9b21 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -30,7 +30,7 @@ services:
   frontend:
     build: ./frontend
     ports:
-      - "3000:80"
+      - "3001:80"
     depends_on:
       - backend