From c215a8059c39c32af302a04c6c46eb9493c37c93 Mon Sep 17 00:00:00 2001
From: Yuichi Nishiwaki <yuichi.nishiwaki@gmail.com>
Date: Sat, 1 Mar 2014 20:27:30 +0900
Subject: [PATCH] update readme

---
 README.md | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 0736d716..9f0dacc8 100644
--- a/README.md
+++ b/README.md
@@ -154,8 +154,7 @@ https://github.com/wasabiz/picrin
 
 picrin scheme depends on some external libraries to build the binary:
 
-- bison
-- yacc
+- lex (preferably, flex)
 - make
 - gcc
 - readline