diff --git a/README.md b/README.md
index c65d8e8755..71701932a1 100644
--- a/README.md
+++ b/README.md
@@ -68,7 +68,7 @@ OpenHuman is an open-source agentic assistant designed to integrate with you in
 
 New contributor? Start with [`CONTRIBUTING.md`](./CONTRIBUTING.md) for the fork/PR workflow and local validation commands. The short path is:
 
-1. Install Git, Node.js 24+, pnpm 10.10.0, Rust 1.93.0 (`rustfmt` + `clippy`), CMake, and the platform desktop build prerequisites.
+1. Install Git, Node.js 24+, pnpm 10.10.0, Rust 1.93.0 (`rustfmt` + `clippy`), CMake, Ninja, ripgrep, and the platform desktop build prerequisites.
 2. Fork and clone the repo, then run `git submodule update --init --recursive` before `pnpm install` so the vendored Tauri/CEF sources are present.
 3. Use `pnpm dev` for web-only UI work, `pnpm --filter openhuman-app dev:app` for the desktop shell, and focused checks such as `pnpm typecheck`, `pnpm format:check`, and `cargo check -p openhuman --lib` before opening a PR.