diff --git a/cpp/CHANGELOG.md b/cpp/CHANGELOG.md
index 5d45c5a054552a6cd501f2fff75f1825f40d69f9..2dacba985be425a334b02aab23f4aecf8add4ee1 100644
--- a/cpp/CHANGELOG.md
+++ b/cpp/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 Please mark all change in change log and use the ticket from JIRA.
 
-# Milvus 0.3.1 (2019-07-10)
+# Milvus 0.4.0 (2019-07-28)
 
 ## Bug