diff --git a/lib/6to5/types/index.js b/lib/6to5/types/index.js
index cc071629c1..8fdd0e2f01 100644
--- a/lib/6to5/types/index.js
+++ b/lib/6to5/types/index.js
@@ -1,5 +1,5 @@
 var traverse = require("../traverse");
-var n        = require("acorn-ast-types").namedTypes;
+var n        = require("ast-types").namedTypes;
 var _        = require("lodash");
 
 var t = exports;