diff --git a/CHANGELOG.md b/CHANGELOG.md
index ab57148..c4d729c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+0.1.9 / 2017-09-02
+------------------
+
+- tree 组件，增加 expandedKeys 属性
+
 0.1.8 / 2017-08-31
 ------------------