diff --git a/docs/数据结构与算法/6.006.en.md b/docs/数据结构与算法/6.006.en.md
index da11a0c6..f6b2b65d 100644
--- a/docs/数据结构与算法/6.006.en.md
+++ b/docs/数据结构与算法/6.006.en.md
@@ -3,7 +3,7 @@
 ## Descriptions
 
 - Offered by: MIT
-- Prerequisites: Introductory level courses (CS50/CS61A/CS106A or equivalent)
+- Prerequisites: Introductory level courses of programming (CS50/CS61A/CS106A or equivalent)
 - Programming Languages: Python
 - Difficulty: 🌟🌟🌟🌟🌟
 - Class Hour: 100 hours+