diff --git a/package.json b/package.json
index 2c68aa80..f04561cf 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "author": "Nicholas C. Zakas <nicholas+npm@nczconsulting.com>",
   "homepage": "https://github.com/eslint/espree",
   "main": "espree.js",
-  "version": "5.0.1",
+  "version": "6.0.0-alpha.0",
   "files": [
     "lib",
     "espree.js"