NPM_VERSIONS = {
    "bower": "1.8.8",
    "crisper": "2.0.2",
    "polymer-bundler": "4.0.2",
}

NPM_SHA1S = {
    "bower": "82544be34a33aeae7efb8bdf9905247b2cffa985",
    "crisper": "7183c58cea33632fb036c91cefd1b43e390d22a2",
    "polymer-bundler": "6b296b6099ab5a0e93ca914cbe93e753f2395910",
}

NPM_VERSIONS = {
    "bower": "1.8.8",
    "crisper": "2.0.2",
    "polymer-bundler": "4.0.9",
}

NPM_SHA1S = {
    "bower": "82544be34a33aeae7efb8bdf9905247b2cffa985",
    "crisper": "7183c58cea33632fb036c91cefd1b43e390d22a2",
    "polymer-bundler": "c80c9815690d76656d1fa6a231481850b4fa3874",
}

Update polymer-bundler version to 4.0.9