diff --git a/package.json b/package.json
index 388f632b71..c0674a6e3d 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "acorn-6to5",
   "description": "Acorn fork used by 6to5",
   "main": "acorn_csp.js",
-  "version": "0.11.1-27",
+  "version": "0.11.1-28",
   "maintainers": [
     {
       "name": "Marijn Haverbeke",