diff --git a/README.md b/README.md
index 3d3a887..f8f0792 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,14 @@ docker-compose up -d
 
 The app runs automatically on the port defined in `SERVICE_PORT` of `.env` file (default : _3001_).
 
+## Database migration
+
+Before using the app, you need to launch the database migration :
+
+```bash
+docker exec v3_user sh -c "npx prisma migrate dev"
+```
+
 ## Usage
 
 The app exposes the following [gRPC](https://grpc.io/) services :