diff --git a/debian/changelog b/debian/changelog
index 7af89c1..1ee8137 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+teckit (2.5.11+ds1-1) UNRELEASED; urgency=medium
+
+  * New upstream version 2.5.11+ds1
+
+ -- Hilmar Preusse <hille42@web.de>  Tue, 09 Nov 2021 22:56:59 +0100
+
 teckit (2.5.10+ds1-3) unstable; urgency=medium
 
   * switch from symbols file to shlibs (Closes: #969152)