diff --git a/debian/changelog b/debian/changelog
index 351d620..950dfae 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,12 @@
+fonts-kacst-one (5.0+svn11846-6) unstable; urgency=low
+
+  * debian/control
+    - bump up debhelper version to deal with xz option
+  * debian/compat
+    - set 9
+
+ -- Hideki Yamane <henrich@debian.org>  Tue, 12 Jun 2012 17:59:33 +0900
+
 fonts-kacst-one (5.0+svn11846-5) unstable; urgency=low
 
   * debian/control
diff --git a/debian/compat b/debian/compat
index 7f8f011..ec63514 100644
--- a/debian/compat
+++ b/debian/compat
@@ -1 +1 @@
-7
+9
diff --git a/debian/control b/debian/control
index 66a5e52..e47c696 100644
--- a/debian/control
+++ b/debian/control
@@ -4,7 +4,7 @@
 Maintainer: Debian Fonts Task Force <pkg-fonts-devel@lists.alioth.debian.org>
 Uploaders: Mohammed Adnène Trojette <adn+deb@diwi.org>, Christian Perrier <bubulle@debian.org>,
            Hideki Yamane <henrich@debian.org>
-Build-Depends: debhelper (>= 7.0.50~)
+Build-Depends: debhelper (>= 9.20120518~)
 Build-Depends-Indep: fontforge-nox
 Standards-Version: 3.9.3
 Homepage: http://projects.arabeyes.org