diff --git a/content/dev/build/web/_index.en.md b/content/dev/build/web/_index.en.md
index c80f333..ae62e29 100644
--- a/content/dev/build/web/_index.en.md
+++ b/content/dev/build/web/_index.en.md
@@ -14,6 +14,12 @@ cd flutter/web/js
 # install protoc first http://google.github.io/proto-lens/installing-protoc.html
 npm install ts-proto
 # only works with vite<=2.8, see: https://github.com/vitejs/vite/blob/main/docs/guide/build.md#chunking-strategy
+npm install vite@2.8
+
+# required for yarn build
+npm install yarn -g
+npm install typescript -g
+npm install protoc -g
 
 yarn build