diff --git a/debian/changelog b/debian/changelog
index 1c3dece33d..fdabb8a681 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+cassandra (4.0.21) unstable; urgency=medium
+
+  * New release
+
+ -- Stefan Miklosovic <smiklosovic@apache.org>  Mon, 13 Jul 2026 13:10:48 +0200
+
 cassandra (4.0.20) unstable; urgency=medium
 
   * New release