我有 symfony 2.0.15 和教义 2.1.7
这是我的 deps 文件
[doctrine-common]
git=http://github.com/doctrine/common.git
version=2.1.4
[doctrine-dbal]
git=http://github.com/doctrine/dbal.git
version=2.1.7
[doctrine]
git=http://github.com/doctrine/doctrine2.git
version=2.1.7
[doctrine-fixtures]
git=http://github.com/doctrine/data-fixtures.git
[DoctrineFixturesBundle]
git=http://github.com/doctrine/DoctrineFixturesBundle.git
target=/bundles/Symfony/Bundle/DoctrineFixturesBundle
version=origin/2.0
[doctrine-migrations]
git=http://github.com/doctrine/migrations.git
[DoctrineMigrationsBundle]
git=http://github.com/doctrine/DoctrineMigrationsBundle.git
target=/bundles/Symfony/Bundle/DoctrineMigrationsBundle
version=origin/2.0
但我想得到教义 2.3 。我该如何更新