diff --git a/package.json b/package.json
index 398af31..a23cba4 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
     "events": "^1.0.2",
     "express": "^4.9.5",
     "express-favicon": "^1.0.1",
-    "gulp": "^3.6.0",
+    "gulp": "^4.0.0",
     "gulp-less": "^3.0.1",
     "gulp-minify-css": "^0.3.4",
     "gulp-rename": "^1.2.0",
@@ -55,7 +55,7 @@
     "jquery": "^2.1.1",
     "kbpgp": "^2.0.46",
     "less-plugin-autoprefix": "^1.4.0",
-    "lodash": "^2.4.1",
+    "lodash": "^4.17.17",
     "mailgun-js": "^0.6.7",
     "mold-source-map": "^0.3.0",
     "moment": "^2.10.2",