Updated some Node dependencies to more recent versions
diff --git a/templates/package.json.template b/templates/package.json.template
index 0525a52..5c2acf4 100644
--- a/templates/package.json.template
+++ b/templates/package.json.template
@@ -33,13 +33,13 @@
       "protobufjs": "^4.0.0"
     },
     "devDependencies": {
-      "async": "^0.9.0",
+      "async": "^1.5.1",
       "google-auth-library": "^0.9.2",
       "istanbul": "^0.3.21",
       "jsdoc": "^3.3.2",
       "jshint": "^2.5.0",
       "minimist": "^1.1.0",
-      "mocha": "~1.21.0",
+      "mocha": "^2.3.4",
       "mocha-jenkins-reporter": "^0.1.9",
       "mustache": "^2.0.0",
       "poisson-process": "^0.2.1"