diff --git a/package.json b/package.json
index ac6d4c9..a8039e5 100644
--- a/package.json
+++ b/package.json
@@ -17,13 +17,13 @@
     "test": "mocha"
   },
   "dependencies": {
-    "esnext": "^0.11.0",
-    "esprima": "git+https://github.com/ariya/esprima.git#harmony",
-    "estraverse": "^1.5.1"
+    "esnext": "^3.0.6",
+    "esprima": "jquery/esprima#master",
+    "estraverse": "estools/estraverse#master"
   },
   "devDependencies": {
     "mocha": "*",
     "chai": "*",
-    "rx": "^2.3.11"
+    "rx": "^4.1.0"
   }
 }