diff --git a/README.md b/README.md
index 6cc59aa..1a7c942 100644
--- a/README.md
+++ b/README.md
@@ -5,4 +5,5 @@ a multi room audio player
 ## requirements
 
 - node.js
-- [nvm](https://github.com/nvm-sh/nvm)
\ No newline at end of file
+- [nvm](https://github.com/nvm-sh/nvm)
+- [ffmpeg](https://ffmpeg.org/) 
\ No newline at end of file