diff --git a/docs/index.md b/docs/index.md
index 93be1aab117..bf0f6bc0c3b 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -9,6 +9,7 @@ In this section we will build a simple documentation site on your local machine.
 > Prerequisites
 > - Familiarity with the command line
 > - Install [.NET SDK](https://dotnet.microsoft.com/en-us/download) 6.0 or higher
+> - Install [Node.js](https://nodejs.org/) v20 or higher
 
 Make sure you have [.NET SDK](https://dotnet.microsoft.com/en-us/download) installed, then open a terminal and enter the following command to install the latest docfx: