diff --git a/package.json b/package.json
index fc7527ae02..536dc501c1 100644
--- a/package.json
+++ b/package.json
@@ -29,19 +29,19 @@
   "dependencies": {
     "ast-types": "~0.7.0",
     "chalk": "^1.0.0",
-    "convert-source-map": "^0.5.0",
+    "convert-source-map": "^1.0.0",
     "core-js": "^0.8.1",
     "debug": "^2.1.1",
     "detect-indent": "^3.0.0",
-    "estraverse": "^1.9.1",
-    "esutils": "^1.1.6",
+    "estraverse": "^3.0.0",
+    "esutils": "^2.0.0",
     "fs-readdir-recursive": "^0.1.0",
-    "globals": "^6.2.0",
+    "globals": "^6.4.0",
     "is-integer": "^1.0.4",
     "js-tokens": "1.0.0",
     "leven": "^1.0.1",
     "line-numbers": "0.2.0",
-    "lodash": "^3.2.0",
+    "lodash": "^3.6.0",
     "minimatch": "^2.0.3",
     "output-file-sync": "^1.1.0",
     "path-is-absolute": "^1.0.0",
@@ -52,7 +52,7 @@
     "shebang-regex": "^1.0.0",
     "slash": "^1.0.0",
     "source-map": "^0.4.0",
-    "source-map-support": "^0.2.9",
+    "source-map-support": "^0.2.10",
     "strip-json-comments": "^1.0.2",
     "to-fast-properties": "^1.0.0",
     "trim-right": "^1.0.0",
@@ -60,15 +60,15 @@
   },
   "devDependencies": {
     "babel": "4.7.13",
-    "browserify": "^9.0.3",
-    "chai": "^2.0.0",
-    "eslint": "^0.15.1",
-    "babel-eslint": "^1.0.1",
+    "browserify": "^9.0.8",
+    "chai": "^2.2.0",
+    "eslint": "^0.18.0",
+    "babel-eslint": "^2.0.0",
     "esvalid": "^1.1.0",
     "istanbul": "^0.3.5",
     "matcha": "^0.6.0",
-    "mocha": "2.1.0",
-    "rimraf": "^2.2.8",
+    "mocha": "2.2.0",
+    "rimraf": "^2.3.2",
     "uglify-js": "^2.4.16"
   }
 }
diff --git a/src/babel/transformation/helpers/build-react-transformer.js b/src/babel/transformation/helpers/build-react-transformer.js
index ce1f7150fa..b8c0e9a79d 100644
--- a/src/babel/transformation/helpers/build-react-transformer.js
+++ b/src/babel/transformation/helpers/build-react-transformer.js
@@ -19,7 +19,7 @@ export default function (exports, opts) {
   exports.JSXIdentifier = function (node, parent) {
     if (node.name === "this" && t.isReferenced(node, parent)) {
       return t.thisExpression();
-    } else if (esutils.keyword.isIdentifierName(node.name)) {
+    } else if (esutils.keyword.isIdentifierNameES6(node.name)) {
       node.type = "Identifier";
     } else {
       return t.literal(node.name);
diff --git a/src/babel/types/validators.js b/src/babel/types/validators.js
index 17e3e726a6..fc1a9e572e 100644
--- a/src/babel/types/validators.js
+++ b/src/babel/types/validators.js
@@ -115,7 +115,7 @@ export function isReferencedIdentifier(node: Object, parent: Object, opts?: Obje
  */
 
 export function isValidIdentifier(name: string): boolean {
-  return isString(name) && esutils.keyword.isIdentifierName(name) && !esutils.keyword.isReservedWordES6(name, true);
+  return isString(name) && esutils.keyword.isIdentifierNameES6(name) && !esutils.keyword.isReservedWordES6(name, true);
 }
 
 /**