diff --git a/ChangeLog.md b/ChangeLog.md
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--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,6 +1,6 @@
 # CppJieba ChangeLog
 
-## next version
+## v3.1.0
 
 1. 新增可动态增加词典的API: insertUserWord
 2. cut函数增加默认参数，默认使用Mix切词算法。关于切词算法详见README.md