diff --git a/CHANGELOG.md b/CHANGELOG.md
index 92ff48f..27ed427 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,13 @@
+<a name="v0.4.0"></a>
+## v0.4.0 (2017-08-27)
+
+
+#### Features
+
+*   add quicksort ([b607608b](b607608b))
+
+
+
 <a name="v0.3.0"></a>
 ## v0.3.0 (2017-08-27)