diff --git a/CHANGELOG.md b/CHANGELOG.md
index fd1987b..48bffcc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 All notable changes to this project will be documented in this file.
 
+## [Unreleased]
+
 ## [v2.0.0] - 2026-09-12
 - Added `dse`, `dse_ms`, `dse_to_ts`, and `dse_to_ts_ms` convenience aliases for days-since-epoch conversions.
 - Corrected the default return type of `unix_day_to_ts_ms` to the millisecond timestamp type.