diff --git a/README.md b/README.md
index e2eb6e6..aaf873c 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,19 @@
+# Deprecation notice
+
+This package has been merged into [`fusion-react`](https://github.com/fusionjs/fusion-react).
+
+```diff
+import {
+  dispatched,
+  prepare,
+  prepared,
+  split,
+  exclude,
+  middleware,
+- } from "fusion-react-async";
++ } from "fusion-react";
+```
+
 # fusion-react-async
 
 [![Build status](https://badge.buildkite.com/7037953b28b5737bad5844360b3ceef38b3aab09b6fd31587d.svg?branch=master)](https://buildkite.com/uberopensource/fusion-react-async)
diff --git a/src/index.js b/src/index.js
index b6c941b..35b6347 100644
--- a/src/index.js
+++ b/src/index.js
@@ -15,6 +15,12 @@ import split from './split';
 import exclude from './traverse-exclude';
 import middleware from './middleware'; //typed
 
+// eslint-disable-next-line no-console
+console.warn(`
+Note: "fusion-react-async" has been deprecated and merged into "fusion-react".
+Please replace imports to "fusion-react-async" with "fusion-react".
+`);
+
 const prepareTyped: (
   element: React.Element<any>
   // $FlowFixMe