diff --git a/debian/changelog b/debian/changelog
index 2b4db640..103f27ae 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,18 @@
+texlive-bin (2020.20200327.54578-6) UNRELEASED; urgency=medium
+
+  * Remove constraints unnecessary since stretch:
+    + Build-Depends: Drop versioned constraint on autoconf, libtool, m4.
+    + texlive-binaries: Drop versioned constraint on tex-common, dpkg in
+      Depends.
+    + texlive-binaries: Drop versioned constraint on texlive-base, musixtex,
+      pmx, m-tx, tex4ht in Replaces.
+    + texlive-binaries: Drop versioned constraint on tex-common, musixtex, pmx,
+      m-tx, context, tex4ht in Breaks.
+    + libkpathsea6: Drop versioned constraint on texlive-base in Breaks.
+    + libptexenc1: Drop versioned constraint on texlive-base in Breaks.
+
+ -- Debian Janitor <janitor@jelmer.uk>  Sat, 14 Nov 2020 21:54:36 -0000
+
 texlive-bin (2020.20200327.54578-5) unstable; urgency=medium
 
   * Replace "DEB_BUILD_OPTIONS=parallel=8" by "dh $@ ... --max-parallel=8".
diff --git a/debian/control b/debian/control
index 21575fa8..3181fa33 100644
--- a/debian/control
+++ b/debian/control
@@ -5,7 +5,7 @@ Maintainer: Debian TeX Task Force <debian-tex-maint@lists.debian.org>
 Uploaders: Norbert Preining <norbert@preining.info>,
 	Hilmar Preusse <hille42@web.de>
 Build-Depends:
-  autoconf (>= 2.69),
+  autoconf,
   automake (>= 1:1.13.1),
   bison,
   debhelper-compat (= 12),
@@ -27,13 +27,13 @@ Build-Depends:
   libpng-dev,
   libpotrace-dev (>= 1.11),
   libteckit-dev,
-  libtool (>= 2.4.2),
+  libtool,
   libwoff-dev,
   libxaw7-dev,
   libxi-dev,
   libxxhash-dev,
   libzzip-dev (>= 0.12),
-  m4 (>= 1.4.16),
+  m4,
   sharutils,
   texinfo,
   texlive-binaries <cross>,
@@ -60,11 +60,11 @@ Depends: libptexenc1 (>= ${source:Version}),
   libtexluajit2 (<< ${source:Version}.1~) [amd64 armel armhf hurd-i386 i386 kfreebsd-amd64 kfreebsd-i386 powerpc],
   t1utils,
   ${shlibs:Depends}, ${misc:Depends},
-  tex-common (>= 6), perl, dpkg (>= 1.15.4) | install-info
+  tex-common, perl, dpkg | install-info
 Recommends: texlive-base, dvisvgm
-Replaces: texlive-metapost (<< 2010), texlive-base (<< 2010), ptex-bin, mendexk, jmpost, luatex (<< 2014), musixtex (<< 1:1.20.ctan20151216-3), pmx (<< 2.7.0.ctan20150301-3), m-tx (<< 0.61.ctan20151217-2), gregorio (<= 2.3-1), tex4ht (<< 20160814), texlive-lang-japanese (<< 2017), texlive-extra-utils (<< 2020.20200329), texlive-luatex (<< 2020.20200329)
+Replaces: texlive-metapost (<< 2010), , ptex-bin, mendexk, jmpost, luatex (<< 2014), , , , gregorio (<= 2.3-1), , texlive-lang-japanese (<< 2017), texlive-extra-utils (<< 2020.20200329), texlive-luatex (<< 2020.20200329)
 Conflicts: mendexk, makejvf, jmpost
-Breaks: texlive-base (<< 2020), jtex-bin, multex-bin, luatex (<< 2014), tex-common (<< 6), musixtex (<< 1:1.20.ctan20151216-3), pmx (<< 2.7.0.ctan20150301-3), m-tx (<< 0.61.ctan20151217-2), gregorio (<= 2.3-1), context (<< 2016), tex4ht (<< 20160814), texlive-htmlxml (<< 2016.20160829), texlive-extra-utils (<< 2020.20200329), texlive-luatex (<< 2020.20200329)
+Breaks: texlive-base (<< 2020), jtex-bin, multex-bin, luatex (<< 2014), , , , , gregorio (<= 2.3-1), , , texlive-htmlxml (<< 2016.20160829), texlive-extra-utils (<< 2020.20200329), texlive-luatex (<< 2020.20200329)
 Provides: texlive-base-bin, makejvf, mendexk, jmpost, luatex
 Description: Binaries for TeX Live
  This package contains all the binaries of TeX Live packages.
@@ -79,7 +79,7 @@ Architecture: any
 Multi-Arch: same
 Pre-Depends: ${misc:Pre-Depends}
 Depends: ${misc:Depends}, ${shlibs:Depends}
-Breaks: texlive-binaries (<< 2014), texlive-base (<< 2014)
+Breaks: texlive-binaries (<< 2014), 
 Description: TeX Live: path search library for TeX (runtime part)
  This package contains the runtime part of the Kpathsea[rch] library,
  which implements generic path searching, configuration, and
@@ -101,7 +101,7 @@ Architecture: any
 Multi-Arch: same
 Depends: ${misc:Depends}, ${shlibs:Depends}
 Pre-Depends: ${misc:Pre-Depends}
-Breaks: texlive-binaries (<< 2014), texlive-base (<< 2014)
+Breaks: texlive-binaries (<< 2014), 
 Description: TeX Live: pTeX encoding library
  library for encoding support in pTeX, a Japanese TeX engine.