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 953f781..b89a76a 100644
--- a/debian/control
+++ b/debian/control
@@ -2,13 +2,12 @@ Source: atreal-publik-themes
 Section: web
 Priority: optional
 Maintainer: Michael Bideau <mbideau@atreal.fr>
-Build-Depends: debhelper (>= 9), sassc (>= 3.4.2), python-all, python3
+Build-Depends: debhelper-compat (= 12), sassc (>= 3.4.2), python3-all
 Standards-Version: 3.9.4
 Homepage: http://git.entrouvert.org/atreal-publik-themes.git
 
 Package: atreal-publik-themes
 Architecture: all
 Depends: ${shlibs:Depends}, ${misc:Depends}, publik-base-theme
-Conflicts: python-authentic2 (<= 2.1.20.742.gb6ee096-0)
 Breaks: combo (<= 0.7.1)
 Description: Publik themes for atReal