Try this:
"dependencies" : {
"name1" : "git://github.com/user/project.git#commit-ish",
"name2" : "git://github.com/user/project.git#commit-ish"
}
You could also try this, where visionmedia/express is name/repo:
"dependencies" : {
"express" : "visionmedia/express"
}
Or (if the npm package module exists):
"dependencies" : {
"name": "*"
}
Taken from NPM docs