diff --git a/package.json b/package.json
index 1c6deb19..406f3422 100644
--- a/package.json
+++ b/package.json
@@ -28,14 +28,14 @@
   },
   "dependencies": {
     "argparse": "^1.0.7",
-    "esprima": "^2.6.0"
+    "esprima": "^3.1.1"
   },
   "devDependencies": {
     "ansi": "*",
     "benchmark": "*",
     "browserify": "^13.0.0",
     "codemirror": "^5.13.4",
-    "eslint": "^2.8.0",
+    "eslint": "^3.10.0",
     "istanbul": "*",
     "mocha": "*",
     "uglify-js": "^2.6.1"