i guess i forgot grunt-bump in devDependencies

package.json

@@ -16,6 +16,7 @@
     "grunt-contrib-jshint": "^0.8.0",
     "grunt-jscs-checker": "^0.4.4",
     "grunt-karma": "^0.8.3",
+    "grunt-bump": "0.0.14",
     "lumbar": "^2.0.1",
     "karma": "^0.12.16",
     "karma-jasmine": "^0.2.2",