diff --git a/package.json b/package.json
index 2530d179..0af8ca93 100644
--- a/package.json
+++ b/package.json
@@ -28,20 +28,18 @@
     "tag": "next"
   },
   "devDependencies": {
-    "babel-core": "^6.7.2",
-    "babel-eslint": "5.0.0",
+    "babel-core": "^6.7.4",
+    "babel-eslint": "6.0.0-beta.6",
     "babel-loader": "^6.0.1",
     "babel-preset-es2015": "^6.5.0",
     "babel-plugin-transform-es2015-classes": "^6.6.5",
     "clean-webpack-plugin": "^0.1.3",
-    "estraverse": "4.2.0",
-    "estraverse-fb": "1.3.1",
     "grunt": "^0.4.5",
     "grunt-babel": "^6.0.0",
     "grunt-contrib-clean": "^1.0.0",
-    "grunt-contrib-connect": "^1.0.0",
+    "grunt-contrib-connect": "^1.0.1",
     "grunt-contrib-copy": "^1.0.0",
-    "grunt-contrib-qunit": "^1.0.1",
+    "grunt-contrib-qunit": "^1.1.0",
     "grunt-contrib-stylus": "^1.2.0",
     "grunt-contrib-watch": "^1.0.0",
     "grunt-esdoc": "^0.0.2",