diff --git a/package.json b/package.json
index ffdb02c..ad8e7aa 100644
--- a/package.json
+++ b/package.json
@@ -30,8 +30,8 @@
     "virtual-dom": "^2.1.1",
     "webpack": "^1.12.9",
     "webpack-dev-server": "^1.14.0",
-    "copy-webpack-plugin": "^1.1.1",
-    "xo": "^0.12.1"
+    "copy-webpack-plugin": "^2.0.0",
+    "xo": "^0.17.0"
   },
   "license": "MIT",
   "main": "index.js",