diff -Nru light-locker-settings-1.5.0/debian/changelog light-locker-settings-1.5.0/debian/changelog
--- light-locker-settings-1.5.0/debian/changelog	2019-12-17 12:36:02.000000000 +0000
+++ light-locker-settings-1.5.0/debian/changelog	2020-03-27 13:12:11.000000000 +0000
@@ -1,3 +1,9 @@
+light-locker-settings (1.5.0-0ubuntu4) focal; urgency=medium
+
+  * Build using python3.
+
+ -- Matthias Klose <doko@ubuntu.com>  Fri, 27 Mar 2020 14:12:11 +0100
+
 light-locker-settings (1.5.0-0ubuntu3) focal; urgency=medium
 
   * No-change rebuild to generate dependencies on python2.
diff -Nru light-locker-settings-1.5.0/debian/control light-locker-settings-1.5.0/debian/control
--- light-locker-settings-1.5.0/debian/control	2015-01-20 03:23:02.000000000 +0000
+++ light-locker-settings-1.5.0/debian/control	2020-03-27 13:10:31.000000000 +0000
@@ -3,19 +3,19 @@
 Priority: optional
 Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
 XSBC-Original-Maintainer: Sean Davis <smd.seandavis@gmail.com>
-Build-Depends: debhelper (>= 9), python (>= 2.6.6-3~), 
- python-distutils-extra (>= 2.10), dh-python
+Build-Depends: debhelper (>= 9), python3, 
+ python3-distutils-extra (>= 2.10), dh-python
 Standards-Version: 3.9.6
 X-Python-Version: >= 2.6
 Homepage: https://launchpad.net/light-locker-settings
 
 Package: light-locker-settings
 Architecture: all
-Depends: ${python:Depends}, 
+Depends: ${python3:Depends}, 
  ${misc:Depends}, 
  gir1.2-glib-2.0,
  gir1.2-gtk-3.0,
- python-psutil,
+ python3-psutil,
  light-locker (>= 1.4.0)
 Description: simple configuration tool for light-locker
  light-locker-settings is a simple configuration utility that allows you 
diff -Nru light-locker-settings-1.5.0/debian/rules light-locker-settings-1.5.0/debian/rules
--- light-locker-settings-1.5.0/debian/rules	2015-01-20 03:07:06.000000000 +0000
+++ light-locker-settings-1.5.0/debian/rules	2020-03-27 13:11:12.000000000 +0000
@@ -6,10 +6,10 @@
 DESTDIR := ${CURDIR}/debian/light-locker-settings
 
 %:
-	dh $@ --with python2
+	dh $@ --with python3
 
 override_dh_auto_configure:
-	./configure --prefix=/usr
+	./configure --prefix=/usr --python=/usr/bin/python3
 
 override_dh_auto_install:
 	dh_auto_install