diff --git a/demo/www/lib/ionic-material/package.json b/demo/www/lib/ionic-material/package.json
index 2c556ab..d523eb1 100644
--- a/demo/www/lib/ionic-material/package.json
+++ b/demo/www/lib/ionic-material/package.json
@@ -36,7 +36,7 @@
     "gulp-minify-css": "^0.3.0",
     "gulp-rename": "^1.1.0",
     "gulp-uglify": "^0.2.1",
-    "lodash": "^3.9.1"
+    "lodash": "^4.17.19"
   },
   "devDependencies": {
     "cz-conventional-changelog": "^1.1.0",