diff --git a/README.md b/README.md
index 5be335f4..272a318c 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,7 @@ Manim dependencies rely on system libraries you will need to install on your
 operating system:
 * ffmpeg
 * latex
+* sox
 
 Then you can install the python dependencies:
 ```sh