diff --git a/CHANGELOG.md b/CHANGELOG.md
index 445238d0a..4ca41210d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,12 @@
   * event `OnCreateCOMDynamicEvent`
 
 
+## v1.9.7
+
+### Added
+* Added `PpPlaceholderType.ppPlaceholderCameo` enum value in PowerPoint library [#428](https://github.com/NetOfficeFw/NetOffice/pull/428)
+
+
 ## v1.9.6
 
 ### Added