diff --git a/debian/control b/debian/control
index 19581a3..942baf5 100644
--- a/debian/control
+++ b/debian/control
@@ -2,7 +2,7 @@ Source: xasm
 Maintainer: Piotr Fusik <fox@scene.pl>
 Section: devel
 Priority: optional
-Standards-Version: 3.9.3
+Standards-Version: 4.6.0
 Build-Depends: debhelper (>= 7), dmd (>= 2), asciidoc-base
 
 Package: xasm
diff --git a/debian/copyright b/debian/copyright
index 9901497..5595a4c 100644
--- a/debian/copyright
+++ b/debian/copyright
@@ -1,4 +1,4 @@
-Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
 Name: xasm
 Source: https://github.com/pfusik/xasm