1 files changed, 3 insertions, 1 deletions
diff --git a/README b/README
index 8a7fb6f..7e65592 100644
--- a/README
+++ b/README
@@ -25,10 +25,12 @@ Required runtime dependencies
 
     cowsay    : this is a wrapper for cowsay
 
-    coreutils : the main script [file: ponysay] uses stty, cut, ls, cat, head and tail
+    coreutils : the main script [file: ponysay] uses stty, cut, ls, cat, sort, head and tail
 
     sed       : used to remove .pony from pony named when running ponysay -l
 
+    perl      : required to run ponysay -l
+
 
 Optional runtime dependencies
 =============================