diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1cf73043..a81736c0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -20,6 +20,11 @@
   * Update: update "browserify" to v14.4.0
   * Fix: fix Readme typo (#473)
 
+2.6.9 / 2017-09-22
+==================
+
+  * remove ReDoS regexp in %o formatter (#504)
+
 2.6.8 / 2017-05-18
 ==================