diff --git a/package.json b/package.json
index 3d4e1c2aef5f..efe52ae40690 100644
--- a/package.json
+++ b/package.json
@@ -56,21 +56,21 @@
     "ember-cli-string-utils": "^1.0.0",
     "enhanced-resolve": "^3.4.1",
     "exports-loader": "^0.6.3",
-    "extract-text-webpack-plugin": "3.0.0",
+    "extract-text-webpack-plugin": "3.0.2",
     "file-loader": "^0.10.0",
     "fs-extra": "^4.0.0",
     "get-caller-file": "^1.0.0",
     "glob": "^7.0.3",
     "heimdalljs": "^0.2.4",
     "heimdalljs-logger": "^0.1.9",
-    "html-webpack-plugin": "^2.29.0",
+    "html-webpack-plugin": "^4.0.0",
     "istanbul-instrumenter-loader": "^2.0.0",
     "karma-source-map-support": "^1.2.0",
     "less": "^2.7.2",
     "less-loader": "^4.0.5",
     "license-webpack-plugin": "^1.0.0",
     "loader-utils": "^1.0.2",
-    "lodash": "^4.11.1",
+    "lodash": "^4.17.17",
     "magic-string": "^0.22.3",
     "memory-fs": "^0.4.1",
     "node-modules-path": "^1.0.0",