diff --git a/README.md b/README.md
index 558f5e7..2cef2ba 100644
--- a/README.md
+++ b/README.md
@@ -49,7 +49,17 @@ Note: Docker will automatically load the `.env` file from your project root
 The application will be available at `http://localhost:5001`
 
 ### Persisting Data
-The database will be preserved between container restarts through the `./instance` volume mount.
+The database file (database.db) will be preserved between container restarts through the `./instance` volume mount.
+
+**Important:** After renaming the database:
+1. Delete the old database file if it exists:
+```bash
+rm instance/users.db
+```
+2. Reinitialize the database:
+```bash
+flask init-db
+```
 
 ## Configuration
 
diff --git a/app.py b/app.py
index 27f184d..4a8d101 100644
--- a/app.py
+++ b/app.py
@@ -9,7 +9,7 @@ app.config["SECRET_KEY"] = os.environ.get(
     "FLASK_SECRET_KEY", "your-secret-key-here"  # Fallback for development only
 )
 app.config["SQLALCHEMY_DATABASE_URI"] = "sqlite:///" + os.path.join(
-    os.path.abspath(os.path.dirname(__file__)), "instance/users.db"
+    os.path.abspath(os.path.dirname(__file__)), "instance/database.db"
 )
 app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
 
diff --git a/docker-compose.yml b/docker-compose.yml
index a28611e..da92fd8 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -8,6 +8,6 @@ services:
     environment:
       - FLASK_ENV=production
       - FLASK_SECRET_KEY=${FLASK_SECRET_KEY}  # Required - set in .env file
-      - SQLALCHEMY_DATABASE_URI=sqlite:////app/instance/users.db
+      - SQLALCHEMY_DATABASE_URI=sqlite:////app/instance/database.db
     volumes:
       - ./instance:/app/instance