diff --git a/README.md b/README.md
index 49ec530..1bfee6f 100644
--- a/README.md
+++ b/README.md
@@ -72,6 +72,8 @@ If you are mounting existing certificates:
 
 Obviously, this container needs something to monitor to determine whether changes have been made. This is accomplished via bind-mounting a directory from the host and is why 'polling' is necessary. Mount a directory with files to be monitored to */watch* in the container.
 
+> Starting with v4.0.0 you can watch up to 5 directories! Simply mount them to `/watch`, `/watch2` ... `/watch5'.
+
 ## Commands
 
 The container’s entrypoint script recognizes a few commands that tell it what you want to do: