diff --git a/debian/changelog b/debian/changelog
index 4532f7c..1423c87 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -4,6 +4,8 @@
   * Use secure copyright file specification URI.
   * Upgrade to newer source format 3.0 (quilt).
   * Add missing build dependency on dh addon.
+  * Bump debhelper from deprecated 9 to 13.
+    + Replace python_distutils buildsystem with pybuild.
 
  -- Debian Janitor <janitor@jelmer.uk>  Wed, 03 Nov 2021 17:00:45 -0000
 
diff --git a/debian/compat b/debian/compat
index ec63514..b1bd38b 100644
--- a/debian/compat
+++ b/debian/compat
@@ -1 +1 @@
-9
+13
diff --git a/debian/control b/debian/control
index cffe734..4b78286 100644
--- a/debian/control
+++ b/debian/control
@@ -2,7 +2,7 @@
 Maintainer: Martín Ferrari <tincho@debian.org>
 Section: python
 Priority: optional
-Build-Depends: python-all-dev, debhelper (>= 9), dh-python, python2:any | python2-dev:any | dh-sequence-python2
+Build-Depends: python-all-dev, debhelper (>= 13~), dh-python, python2:any | python2-dev:any | dh-sequence-python2
 Standards-Version: 3.9.8
 Homepage: https://github.com/TheTincho/python-passfd/
 Vcs-Browser: https://anonscm.debian.org/cgit/users/tincho/python-passfd.git
diff --git a/debian/rules b/debian/rules
index 8e4f4eb..ecd2737 100755
--- a/debian/rules
+++ b/debian/rules
@@ -1,4 +1,4 @@
 #!/usr/bin/make -f
 
 %:
-	dh $@ --with python2 --buildsystem=python_distutils
+	dh $@ --with python2 --buildsystem=pybuild