diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4c8460d..69c840f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Yii Hydrator Change Log
 
+## 1.3.1 under development
+
+- no changes in this release.
+
 ## 1.3.0 August 07, 2024
 
 - New #49: Add `Collection` PHP attribute (@arogachev)