diff --git a/docs/软件工程/6031.en.md b/docs/软件工程/6031.en.md
index 03946269..ac46b75e 100644
--- a/docs/软件工程/6031.en.md
+++ b/docs/软件工程/6031.en.md
@@ -24,7 +24,7 @@ In the 2016 spring, the course open-sourced all of its programming assignments,
 
 - Course Website: [2021spring](http://web.mit.edu/6.031/www/sp21/), [2016spring](https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-005-software-construction-spring-2016/)
 - Recordings: None
-- Assignments：4 Problem Sets + 1 Project
+- Assignments: 4 Problem Sets + 1 Project
 
 ## Personal Resources