diff --git a/CHANGES.rst b/CHANGES.rst
index 330dde5b..20627b3b 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,3 +1,7 @@
+1.4.0 (unreleased)
+==================
+
+
 1.4.0 (2023-06-27)
 ==================