diff --git a/package-lock.json b/package-lock.json
index 4b6c00a..e118db8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "pwa-helpers",
-  "version": "0.9.0-pre.4",
+  "version": "0.9.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 292fbd1..9676bd7 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "pwa-helpers",
-  "version": "0.9.0-pre.4",
+  "version": "0.9.0",
   "description": "Small helper methods or mixins to help you build web apps.",
   "contributors": [
     "The Polymer Authors"