diff --git a/CHANGELOG.md b/CHANGELOG.md
index 397f423..c76c58e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 This file is used to list changes made in each version of the postfix cookbook.
 
+## Unreleased
+
 ## 6.4.1 - *2025-09-04*
 
 ## 6.4.0 - *2025-07-30* ## 6.4.0 - *2025-07-30*