diff --git a/debian/compat b/debian/compat
index 7f8f011e..ec635144 100644
--- a/debian/compat
+++ b/debian/compat
@@ -1 +1 @@
-7
+9
diff --git a/debian/control b/debian/control
index f423f760..0bf31d14 100644
--- a/debian/control
+++ b/debian/control
@@ -2,9 +2,12 @@ Source: guh
 Section: utils
 Priority: optional
 Maintainer: Michael Zanetti <michael_zanetti@gmx.net>
-Build-Depends: debhelper (>= 8.0.0),
-               qt5-default,
-               qtbase5-dev,
+Build-Depends: debhelper (>= 9.0.0),
+  dpkg-dev (>= 1.16.1~),
+  hardening-wrapper,
+  python,
+  qt5-default,
+  qtbase5-dev
 Standards-Version: 3.9.3
 
 Package: guh