diff --git a/debian/compat b/debian/compat
deleted file mode 100644
index ec63514..0000000
--- a/debian/compat
+++ /dev/null
@@ -1 +0,0 @@
-9
diff --git a/debian/control b/debian/control
index 97fe271..92e830a 100644
--- a/debian/control
+++ b/debian/control
@@ -2,7 +2,7 @@ Source: postfwd
 Section: mail
 Priority: optional
 Maintainer: Jan Wagner <waja@cyconet.org>
-Build-Depends: debhelper (>= 9), html2text
+Build-Depends: debhelper-compat (= 12), html2text
 Homepage: http://www.postfwd.org/
 Vcs-Browser: https://gitlab.uncompleted.org/debian/postfwd
 Vcs-Git: https://gitlab.uncompleted.org/debian/postfwd.git