{
  "require" : {
    "ext-mbstring": "*",
    "silex/silex": "~1.3",
    "twig/twig": "~1.19",
    "monolog/monolog": "~1.7",
    "mbilbille/jpnforphp": "dev-develop"
  },
  "require-dev": {
    "heroku/heroku-buildpack-php": "*"
  }
}

{
  "require": {
    "ext-mbstring": "*",
    "ext-pdo_sqlite": "*",
    "silex/silex": "~1.3",
    "twig/twig": "~1.19",
    "monolog/monolog": "~1.7",
    "mbilbille/jpnforphp": "dev-develop"
  },
  "require-dev": {
    "heroku/heroku-buildpack-php": "*"
  }
}

Add sqlite pdo extension for Heroku deployment
Add sqlite pdo extension for Heroku deployment
