diff --git a/CHANGELOG b/CHANGELOG
index 8498bf724..bfcd51b60 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,7 @@
+2018-04-28 Version: 1.7.3
+1, Add dcdn domain interface，Support add、modify、delete、query dcdn domain.
+2, Add dcdn config interface，Support set、delete、query domain config.
+
 2018-04-28 Version: 1.7.2
 1, Add dcdn domain interface，Support add、modify、delete、query dcdn domain.
 2, Add dcdn config interface，Support set、delete、query domain config.
diff --git a/VERSION b/VERSION
index 0a182f2e3..bbf649f61 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.7.2
\ No newline at end of file
+1.7.3
\ No newline at end of file