update packages

package.json

@@ -9,7 +9,7 @@
   "license": "MIT",
   "dependencies": {
     "coffee-script": "1.10",
-    "lodash": "4",
+    "lodash": "^4.13.1",
     "passport": "^0.3.2",
     "passport-github": "^1.1.0",
     "passport-google-oauth20": "^1.0.0",
@@ -24,6 +24,6 @@
     "grunt-contrib-watch": "~1",
     "grunt-git-authors": "^3.2.0",
     "grunt-nsp": "*",
-    "grunt-retire": "*"
+    "grunt-retire": "^1.0.1"
   }
 }