diff --git a/package.json b/package.json
index 78d1a9388..585c6a93d 100644
--- a/package.json
+++ b/package.json
@@ -27,11 +27,13 @@
   "private": true,
   "devDependencies": {
     "eslint": "^4.16",
+    "gulp": "^3.9.1",
     "gulp-concat": "^2.6.1",
     "gulp-insert": "^0.5.0",
     "gulp-series": "^1.0.2",
     "gulp-shell": "^0.6.5",
-    "jshint": "^2.9.5"
+    "jshint": "^2.9.5",
+    "webdriverio": "^4.12.0"
   },
   "jshintConfig": {
     "globalstrict": true,
@@ -48,10 +50,6 @@
     "unused": true
   },
   "dependencies": {
-    "google-closure-library": "^20180204.0.0",
-    "gulp": "^3.9.1",
-    "install": "^0.8.8",
-    "npm": "^4.4.4",
-    "webdriverio": "^4.6.2"
+    "google-closure-library": "^20180506.0.0"
   }
 }