diff --git a/debian/compat b/debian/compat
index ec63514..f599e28 100644
--- a/debian/compat
+++ b/debian/compat
@@ -1 +1 @@
-9
+10
diff --git a/debian/control b/debian/control
index 5ab1919..fcd89b5 100644
--- a/debian/control
+++ b/debian/control
@@ -1,9 +1,10 @@
 Source: mini-sendmail
 Section: mail
-Priority: extra
+Priority: optional
 Maintainer: Michael Herold <michael.herold@getflywheel.com>
-Build-Depends: debhelper (>= 9)
-Standards-Version: 3.9.4
+Build-Depends: debhelper (>= 10),
+               bats
+Standards-Version: 4.5.1
 Vcs-Browser: https://github.com/getflywheel/mini_sendmail
 Vcs-Git: https://github.com/getflywheel/mini_sendmail.git -b master