diff --git a/storage/db.go b/storage/db.go
index bc34a07..375dc40 100644
--- a/storage/db.go
+++ b/storage/db.go
@@ -34,6 +34,7 @@ func InitDB(filepath string) *sql.DB {
 	createMyTicketsTable := `
 	CREATE TABLE IF NOT EXISTS my_tickets (
 		id INTEGER PRIMARY KEY AUTOINCREMENT,
+		userId INTEGER NOT NULL,
 		game_type TEXT NOT NULL,
 		draw_date TEXT NOT NULL,
 		ball1 INTEGER,
@@ -44,7 +45,10 @@ func InitDB(filepath string) *sql.DB {
 		bonus1 INTEGER,
 		bonus2 INTEGER,
 		duplicate BOOLEAN DEFAULT 0,
-		created_at DATETIME DEFAULT CURRENT_TIMESTAMP
+		purchased_date TEXT,
+		purchased_location TEXT,
+		created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+		FOREIGN KEY (userId) REFERENCES users(id)
 	);`
 
 	if _, err := db.Exec(createMyTicketsTable); err != nil {