diff --git a/ChangeLog.md b/ChangeLog.md
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--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,10 @@
 # ChangeLog
 
+### 2022-03-25
+
+- Replace gitalk with giscus comments system which is based on Github Discussions
+- Update css styles
+
 ### 2022-03-24
 
 - Add [comment-docs.md(Zh)]