diff --git a/docs/assignments/8.profiling_tools.md b/docs/assignments/8.profiling_tools.md
index f283b63..c7d09f7 100644
--- a/docs/assignments/8.profiling_tools.md
+++ b/docs/assignments/8.profiling_tools.md
@@ -1,6 +1,6 @@
 # 小作业八：性能分析实践
 
-负责助教：郑立言 zhengly20@mails.tsinghua.edu.cn
+负责助教：吴成彰 wcz19@mails.tsinghua.edu.cn
 
 ## 任务