diff --git a/CHANGELOG.md b/CHANGELOG.md
index a68921fd..7586c6c3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+### 3.8.9 ###
+- Fixed assignUserGroup permission serialization bug
+
 ### 3.8.8 ###
 - Added ability to exclude datatypes on import (thanks @Zae)