diff --git a/development-tools/rtthread-studio/changelog/changelog.md b/development-tools/rtthread-studio/changelog/changelog.md
index af373df469365ec0c001295c30aea15faa83fbdd..63a36e900351463ee6ffb7eae72556f8af903c3a 100644
--- a/development-tools/rtthread-studio/changelog/changelog.md
+++ b/development-tools/rtthread-studio/changelog/changelog.md
@@ -1,4 +1,4 @@
-## 更新日志
+# 更新日志
 
 ##### [V2.1.1 更新发布](https://club.rt-thread.org/ask/article/2887.html)