diff --git a/README.md b/README.md
index 66b8e7b73..32151a6b7 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,31 @@
 
 This is The Jitsi Handbook. Your one-stop-shop for Jitsi documentation. It's powered by [Docusaurus](https://docusaurus.io/).
 
+## Install dependencies
+
+If you use **Windows**, you need install ```gifsicle```:
+
+```js 
+npm install -g gifsicle
+```
+alternative command
+```js
+cnpm install gifsicle
+```
+
+If you use **Debian/Ubuntu**, you need install ```dh-autoreconf```:
+
+```shell
+apt-get update
+apt-get install dh-autoreconf
+```
+
+If you use **MacOS**, you need install ```automake```:
+
+```shell
+brew install automake
+```
+
 ## Building the site
 
 The site is built automatically with every push thanks to a [GH Actions](https://github.com/jitsi/handbook/blob/master/.github/workflows/gh-pages.yml).