diff --git a/README.md b/README.md
index a65fc63..bd711f1 100644
--- a/README.md
+++ b/README.md
@@ -61,6 +61,10 @@ This background-color style will only be applied if `image` is a "falsy" value:
 }}
 ```
 
+## Updating to 1.x
+* Updating from 0.x to 1.x requires that your app supports [RFC 176: JavaScript Module
+  API](https://github.com/emberjs/rfcs/pull/176)
+
 ## Installation
 
 * `git clone <repository-url>` this repository
diff --git a/package.json b/package.json
index 2743196..0b2bd4a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "initials-avatar",
-  "version": "0.2.1",
+  "version": "1.0.0",
   "description": "Generate an avatar based on a person's first name, last name, company name, and email",
   "keywords": [
     "ember-addon"