diff --git a/debian/changelog b/debian/changelog
index 97b285a..9467556 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,14 @@
+dx (1:4.4.4-16) UNRELEASED; urgency=medium
+
+ * Remove constraints unnecessary since buster (oldstable):
+ + Build-Depends: Drop dependency on essential package dpkg-dev (>= 1.16.1~).
+ + Build-Depends: Replace dependency on transitional package
+ x11proto-core-dev with replacement x11proto-dev.
+ + libdx4-dev: Replace dependency on transitional package x11proto-core-dev
+ with replacement x11proto-dev in Suggests.
+
+ -- Debian Janitor <janitor@jelmer.uk> Wed, 15 Feb 2023 09:12:09 -0000
+
dx (1:4.4.4-15) unstable; urgency=medium
[ Simon McVittie ]
diff --git a/debian/control b/debian/control
index d094207..9117664 100644
--- a/debian/control
+++ b/debian/control
@@ -5,7 +5,6 @@ Maintainer: Debian Science Maintainers <debian-science-maintainers@lists.alioth.
Uploaders: Graham Inggs <ginggs@debian.org>, Paul Gevers <elbrus@debian.org>
Build-Depends: bison,
debhelper-compat (= 13),
- dpkg-dev (>= 1.16.1~),
ed,
flex,
libbz2-dev,
@@ -24,7 +23,7 @@ Build-Depends: bison,
libxpm-dev,
libxt-dev,
m4,
- x11proto-core-dev,
+ x11proto-dev,
zlib1g-dev | libz-dev
Build-Conflicts: libgraphicsmagick-dev
Standards-Version: 4.6.0
@@ -85,7 +84,7 @@ Suggests: libbz2-dev,
libxmu-dev,
libxpm-dev,
libxt-dev,
- x11proto-core-dev,
+ x11proto-dev,
zlib1g-dev | libz-dev
Description: OpenDX (IBM Visualization Data Explorer) - development files
Data Explorer is a system of tools and user interfaces for visualizing data.
