diff --git a/package.json b/package.json
index 476582ec..be488c78 100644
--- a/package.json
+++ b/package.json
@@ -9,13 +9,13 @@
     "babel-preset-es2015": "^6.9.0",
     "babel-preset-stage-0": "^6.5.0",
     "bootstrap": "^4.0.0",
-    "dateformat": "^1.0.12",
+    "dateformat": "^2.0.0",
     "jquery": "^3.1.0",
     "leaflet": "^0.7.7",
     "materialize-css": "^0.99.0",
     "sortablejs": "^1.4.2",
-    "webpack": "^2.2.0",
-    "webpack-dev-server": "^3.1.6"
+    "webpack": "^4.0.0",
+    "webpack-dev-server": "^4.0.0"
   },
   "devDependencies": {},
   "scripts": {