diff --git a/README.md b/README.md
index 6a0aefc1..2516bb7b 100644
--- a/README.md
+++ b/README.md
@@ -1,13 +1,12 @@
-# Holochain Client - JavaScript
-
 [![Project](https://img.shields.io/badge/Project-Holochain-blue.svg?style=flat-square)](http://holochain.org/)
 [![Forum](https://img.shields.io/badge/Forum-forum%2eholochain%2enet-blue.svg?style=flat-square)](https://forum.holochain.org)
 [![License: CAL 1.0](https://img.shields.io/badge/License-CAL%201.0-blue.svg)](https://github.com/holochain/cryptographic-autonomy-license)
 ![Test](https://github.com/holochain/holochain-client-js/actions/workflows/test.yml/badge.svg?branch=main)
-
 [![Twitter Follow](https://img.shields.io/twitter/follow/holochain.svg?style=social&label=Follow)](https://twitter.com/holochain)
 
-A JavaScript client for the Holochain Conductor API (works with browsers as well as Nodejs)
+# Holochain Client - JavaScript
+
+A JavaScript client for the Holochain Conductor API (works with browsers as well as Nodejs).
 
 > Holochain's Conductor API is under active development. This client package tracks that development fairly closely but sometimes gets behind.
 
@@ -57,11 +56,10 @@ See [docs/API.md](docs/API.md)
 
 # Holochain Compatibility
 
-This version of `@holochain/client` is currently working with
-- `holochain/holochain` at tag [holochain-0.0.122](https://github.com/holochain/holochain/tree/holochain-0.0.122)
-- hdk version [0.0.118 from crates.io](https://crates.io/crates/hdk/0.0.118)
+See [default.nix](./default.nix) for the Holochain version this package is compatible with.
 
-If updating this code, please make changes to the git `rev/sha` above.  (You can get this from `hn-introspect` after updating the holonix-hash)
+If updating the Holochain version included in holonix, please use `niv update` as explained in the
+[Holochain Installation Guide](https://developer.holochain.org/install/#upgrading-the-holochain-version).
 
 ## Running tests
 
@@ -76,14 +74,16 @@ nix-shell
 ```
 
 ## Contribute
+
 Holochain is an open source project.  We welcome all sorts of participation and are actively working on increasing surface area to accept it.  Please see our [contribution guidelines](/CONTRIBUTING.md) for our general practices and protocols on participating in the community, as well as specific expectations around things like code formatting, testing practices, continuous integration, etc.
 
 * Connect with us on our [forum](https://forum.holochain.org)
 
 ## License
+
  [![License: CAL 1.0](https://img.shields.io/badge/License-CAL%201.0-blue.svg)](https://github.com/holochain/cryptographic-autonomy-license)
 
-Copyright (C) 2020-2021, Holochain Foundation
+Copyright (C) 2020-2022, Holochain Foundation
 
 This program is free software: you can redistribute it and/or modify it under the terms of the license
 provided in the LICENSE file (CAL-1.0).  This program is distributed in the hope that it will be useful,
diff --git a/package.json b/package.json
index 43cc4b78..6f8ec22c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@holochain/client",
-  "version": "0.3.3",
+  "version": "0.3.4",
   "description": "A JavaScript client for the Holochain Conductor API",
   "author": "Holochain Foundation <info@holochain.org> (http://holochain.org)",
   "license": "CAL-1.0",
@@ -18,7 +18,7 @@
   },
   "homepage": "https://github.com/holochain/holochain-client-js#readme",
   "engines": {
-    "node": "^14.13.1 || >=16.0.0"
+    "node": "^14.13.1 || >=16.0.0 || >=18.0.0"
   },
   "type": "module",
   "exports": {