diff --git a/lib/js/package.json b/lib/js/package.json
index a275e67..dfed941 100644
--- a/lib/js/package.json
+++ b/lib/js/package.json
@@ -13,8 +13,8 @@
   "license": "Apache-2.0",
   "devDependencies": {
     "browserify": "~16.5",
-    "grunt": "~1.0.4",
-    "grunt-cli": "~1.3",
+    "grunt": "^1.4.1",
+    "grunt-cli": "^1.4.3",
     "grunt-contrib-concat": "~1.0",
     "grunt-contrib-jshint": "~2.1",
     "grunt-contrib-qunit": "~3.1",