diff -Nru libchewing-0.5.1/debian/changelog libchewing-0.5.1/debian/changelog
--- libchewing-0.5.1/debian/changelog	2021-10-07 10:14:33.000000000 +0000
+++ libchewing-0.5.1/debian/changelog	2022-03-24 12:10:54.000000000 +0000
@@ -1,3 +1,9 @@
+libchewing (0.5.1-4build2) jammy; urgency=high
+
+  * No change rebuild for ppc64el baseline bump.
+
+ -- Julian Andres Klode <juliank@ubuntu.com>  Thu, 24 Mar 2022 13:10:54 +0100
+
 libchewing (0.5.1-4build1) impish; urgency=medium
 
   * No-change rebuild to build packages with zstd compression.
diff -Nru libchewing-0.5.1/debian/control libchewing-0.5.1/debian/control
--- libchewing-0.5.1/debian/control	2018-09-13 01:37:06.000000000 +0000
+++ libchewing-0.5.1/debian/control	2022-03-24 12:10:54.000000000 +0000
@@ -1,5 +1,6 @@
 Source: libchewing
-Maintainer: Debian Input Method Team <debian-input-method@lists.debian.org>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: Debian Input Method Team <debian-input-method@lists.debian.org>
 Uploaders:
  Kan-Ru Chen (陳侃如) <koster@debian.org>,
  Andrew Lee (李健秋) <ajqlee@debian.org>,