diff --git a/packages/react-devtools-extensions/README.md b/packages/react-devtools-extensions/README.md
index b5c7daf34f..d3e7689ea7 100644
--- a/packages/react-devtools-extensions/README.md
+++ b/packages/react-devtools-extensions/README.md
@@ -15,6 +15,12 @@ DevTools depends on local versions of several NPM packages<sup>1</sup> also in t
 
 <sup>1</sup> Note that at this time, an _experimental_ build is required because DevTools depends on the `createRoot` API.
 
+To install all necessary dependencies, run the following command from the root of the repository:
+
+```sh
+yarn install
+```
+
 #### Build from source
 To build dependencies from source, run the following command from the root of the repository:
 ```sh