diff --git a/bower.json b/bower.json
index b43c553..c265aa9 100644
--- a/bower.json
+++ b/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "pure",
-  "version": "0.5.0-rc-1",
+  "version": "0.5.0-pre",
   "main": "build/pure.css",
   "devDependencies": {
     "normalize-css": "1.1.3"
diff --git a/package.json b/package.json
index a54d748..7991985 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "pure",
-  "version": "0.5.0-rc-1",
+  "version": "0.5.0-pre",
   "private": true,
   "repository": "git://github.com/yui/pure.git",
   "scripts": {