diff --git a/package.json b/package.json
index 47c76158e..2391fca02 100644
--- a/package.json
+++ b/package.json
@@ -24,17 +24,15 @@
     "options": ">=0.0.5",
     "ultron": "1.0.x"
   },
-  "optionalDependencies": {
-    "bufferutil": "1.2.x",
-    "utf-8-validate": "1.2.x"
-  },
   "devDependencies": {
     "ansi": "0.3.x",
     "benchmark": "0.3.x",
+    "bufferutil": "1.2.x",
     "expect.js": "0.3.x",
     "mocha": "2.2.x",
     "should": "4.3.x",
-    "tinycolor": "0.0.x"
+    "tinycolor": "0.0.x",
+    "utf-8-validate": "1.2.x"
   },
   "browser": "./lib/browser.js",
   "component": {