diff --git a/debian/changelog b/debian/changelog
index 786c4e0..10e31f9 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,11 @@
+ibutils (1.5.7+0.2.gbd7e502-4) UNRELEASED; urgency=medium
+
+  * Remove constraints unnecessary since buster (oldstable):
+    + Build-Depends: Drop versioned constraint on dpkg-dev, libopensm-dev,
+      tcl-dev and tk-dev.
+
+ -- Debian Janitor <janitor@jelmer.uk>  Mon, 21 Nov 2022 05:19:31 -0000
+
 ibutils (1.5.7+0.2.gbd7e502-3) unstable; urgency=medium
 
   * Team upload.
diff --git a/debian/control b/debian/control
index ca32935..d409a28 100644
--- a/debian/control
+++ b/debian/control
@@ -4,13 +4,12 @@
 Maintainer: Debian HPC Team <debian-hpc@lists.debian.org>
 Uploaders: Mehdi Dogguy <mehdi@debian.org>
 Build-Depends: debhelper-compat (= 13),
-               dpkg-dev (>= 1.16.0),
                graphviz,
                libibumad-dev,
-               libopensm-dev (>= 3.3.15),
+               libopensm-dev,
                swig,
-               tcl-dev (>= 8.6.0+6),
-               tk-dev (>= 8.6.0+6)
+               tcl-dev,
+               tk-dev
 Rules-Requires-Root: no
 Standards-Version: 4.5.0
 Vcs-Git: https://salsa.debian.org/hpc-team/ibutils.git