diff --git a/debian/changelog b/debian/changelog
index 7a7506d..a79ae59 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+python-click (7.0-4) UNRELEASED; urgency=medium
+
+  * Bump debhelper from deprecated 9 to 12.
+
+ -- Debian Janitor <janitor@jelmer.uk>  Mon, 27 Apr 2020 02:02:31 +0000
+
 python-click (7.0-3) unstable; urgency=medium
 
   [ Ondřej Nový ]
diff --git a/debian/control b/debian/control
index 7d150cd..33a9c15 100644
--- a/debian/control
+++ b/debian/control
@@ -3,7 +3,7 @@ Section: python
 Priority: optional
 Maintainer: Sandro Tosi <morph@debian.org>
 Uploaders: Debian Python Modules Team <python-modules-team@lists.alioth.debian.org>
-Build-Depends: debhelper-compat (= 9),
+Build-Depends: debhelper-compat (= 12),
                dh-python,
                python3-all,
                python3-setuptools,