diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh
index 9a486d6..b6299a4 100644
--- a/docker-entrypoint.sh
+++ b/docker-entrypoint.sh
@@ -32,7 +32,7 @@ ADMIN_PASSWORD="${ADMIN_PASSWORD:-Admin123!}"
 echo "Checking admin user..."
 USER_COUNT=$(mysql -h localhost -u "$DB_USER" -p"$DB_PASSWORD" "$DB_NAME" -N -e "SELECT COUNT(*) FROM usuarios WHERE dni='$ADMIN_DNI';" 2>/dev/null || echo "0")
 if [ "$USER_COUNT" = "0" ]; then
-    ADMIN_ID=$(uuidgen)
+    ADMIN_ID=$(node -e "console.log(require('crypto').randomUUID())")
     TODAY=$(date +%Y-%m-%d)
     HASH=$(node -e "const bcrypt=require('bcryptjs'); console.log(bcrypt.hashSync('$ADMIN_PASSWORD',10));")
     mysql -h localhost -u "$DB_USER" -p"$DB_PASSWORD" "$DB_NAME" -e "INSERT INTO usuarios (id,apellido,nombre,dni,fechaNacimiento,email,rol,passwordHash,fechaCreacion) VALUES ('$ADMIN_ID','Administrador','Sistema','$ADMIN_DNI','$TODAY','admin@hospital.local','admin','$HASH','$TODAY');"