diff --git a/packaging/ubuntu/debian/changelog b/packaging/ubuntu/debian/changelog
index 29ccc0d8..ad08a310 100644
--- a/packaging/ubuntu/debian/changelog
+++ b/packaging/ubuntu/debian/changelog
@@ -1,3 +1,11 @@
+nymea-app (1.8.21) bionic; urgency=medium
+
+  [ Michael Zanetti ]
+  * Add czech translation
+  * Remove debug print leftover
+
+ -- jenkins <developer@nymea.io>  Thu, 07 Sep 2023 15:42:57 +0200
+
 nymea-app (1.8.20) bionic; urgency=medium
 
   [ Michael Zanetti ]
diff --git a/version.txt b/version.txt
index 2078a866..88a9cf85 100644
--- a/version.txt
+++ b/version.txt
@@ -1,2 +1,2 @@
-1.8.20
-602
+1.8.21
+603