diff --git a/docs/configuration/env.md b/docs/configuration/env.md
index d86b863..f91df78 100644
--- a/docs/configuration/env.md
+++ b/docs/configuration/env.md
@@ -31,7 +31,8 @@ INTERVAL=1
 
 ### Node
 
-* `NODE_VERSION`: installs a particular version of node for your app if `nodeenv` is found on the path. Optional; if not specified, the system-wide node  package is used.
+* `NODE_VERSION`: installs a particular version of node for your app if `nodeenv` is found on the path. Optional; if not specified, the system-wide node package is used.
+* `NODE_PACKAGE_MANAGER`: use an alternate package manager (e.g. set to `yarn` or `pnpm`). The package manager will be installed with `npm install -g`.
 
 !!! note
     you will need to stop and re-deploy the app to change the `node` version in a running app.