diff --git a/COPYRIGHT b/COPYRIGHT
index 8a6516f2f..18b7bf61a 100644
--- a/COPYRIGHT
+++ b/COPYRIGHT
@@ -1,6 +1,6 @@
 klayout is packaged by Peter C.S. Scholtens <peter.scholtens@xs4all.nl>
 and Matthias Köfferlein <matthias@koefferlein.de>
-and was obtained from https://www.klayout.org/downloads/source/klayout-0.26.4.tar.gz
+and was obtained from https://www.klayout.org/downloads/source/klayout-0.27.tar.gz
 
 Authors:
 	Matthias Köfferlein
diff --git a/Changelog.Debian b/Changelog.Debian
index 7e3e92d72..8cea81741 100644
--- a/Changelog.Debian
+++ b/Changelog.Debian
@@ -1,3 +1,9 @@
+klayout (0.27-1) unstable; urgency=low
+
+  * NOT RELEASED YET
+
+ -- Matthias Köfferlein <matthias@koefferlein.de>  Sun, 05 Apr 2020 13:30:58 +0200
+
 klayout (0.26.4-1) unstable; urgency=low
 
   * New features and bugfixes