diff --git a/bower.json b/bower.json
index 557532c7a..485c47c3d 100644
--- a/bower.json
+++ b/bower.json
@@ -2,7 +2,7 @@
   "name": "webcomponentsjs",
   "description": "Web components polyfill",
   "main": "webcomponents.js",
-  "version": "1.0.0-rc.9",
+  "version": "1.0.0-rc.10",
   "homepage": "http://webcomponents.org",
   "authors": [
     "The Polymer Authors"
diff --git a/package.json b/package.json
index d1632ae32..511d08fc1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "webcomponents.js",
-  "version": "1.0.0-rc.9",
+  "version": "1.0.0-rc.10",
   "description": "webcomponents.js",
   "main": "webcomponents.js",
   "directories": {