gulp-load-plugins lädt keine Plugins. Kann jemand vorschlagen, warum dies sein könnte?

Node: v0.12.0
NPM: v2.7.3

Mypackage.json:

{
  "name": "foo",
  "version": "0.0.1",
  "dependencies": {},
  "devDependencies": {
    "gulp": "^3.8.11",
    "gulp-load-plugins": "^0.9.0"
  }
}

Mygulpfile.js:

var gulp = require('gulp');
var gulpLoadPlugins = require('gulp-load-plugins');
var plugins = gulpLoadPlugins();

console.log(JSON.stringify(plugins)); // {}

gulp.task('default');