diff -ru ibus-libpinyin-1.7.3.orig/debian/changelog ibus-libpinyin-1.7.3/debian/changelog
--- ibus-libpinyin-1.7.3.orig/debian/changelog	2017-12-06 08:40:58.000000000 +0100
+++ ibus-libpinyin-1.7.3/debian/changelog	2017-12-18 19:06:05.035072322 +0100
@@ -1,3 +1,9 @@
+ibus-libpinyin (1.7.3-2ubuntu2) bionic; urgency=medium
+
+  * Build with liblua5.3-dev instead of liblua5.1-dev.
+
+ -- Gunnar Hjalmarsson <gunnarhj@ubuntu.com>  Mon, 18 Dec 2017 19:06:00 +0100
+
 ibus-libpinyin (1.7.3-2ubuntu1) bionic; urgency=medium
 
   * Build with Python3 instead of Python2.
diff -ru ibus-libpinyin-1.7.3.orig/debian/control ibus-libpinyin-1.7.3/debian/control
--- ibus-libpinyin-1.7.3.orig/debian/control	2017-12-06 08:39:02.000000000 +0100
+++ ibus-libpinyin-1.7.3/debian/control	2017-12-18 19:05:43.495742161 +0100
@@ -1,7 +1,8 @@
 Source: ibus-libpinyin
 Section: utils
 Priority: optional
-Maintainer: IME Packaging Team <pkg-ime-devel@lists.alioth.debian.org>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: IME Packaging Team <pkg-ime-devel@lists.alioth.debian.org>
 Uploaders: Asias He <asias@debian.org>,
            Aron Xu <aron@debian.org>,
            ChangZhuo Chen (陳昌倬) <czchen@debian.org>
@@ -13,7 +14,7 @@
                intltool,
                libgtk-3-dev,
                libibus-1.0-dev (>= 1.4.99.20120917),
-               liblua5.1-dev,
+               liblua5.3-dev,
                libpinyin7-dev (>= 1.2.91),
                libsqlite3-dev,
                libtool,