diff -Nru golang-1.16-1.16.2/debian/changelog golang-1.16-1.16.2/debian/changelog
--- golang-1.16-1.16.2/debian/changelog	2021-05-10 08:41:08.000000000 -0300
+++ golang-1.16-1.16.2/debian/changelog	2022-03-31 08:41:08.000000000 -0300
@@ -1,3 +1,11 @@
+golang-1.16 (1.16.2-0ubuntu1~18.04.1) bionic; urgency=medium
+
+  * Backport to Bionic (LP: #1967425, #1960449).
+    - Downgrade debhelper to compat level 11.
+    - Remove Breaks: dh-golang (<< 1.43~).
+
+ -- Lucas Kanashiro <kanashiro@ubuntu.com>  Thu, 31 Mar 2022 13:41:08 +0200
+
 golang-1.16 (1.16.2-0ubuntu1~20.04) focal; urgency=medium
 
   * Backport to focal (LP: #1929038)
diff -Nru golang-1.16-1.16.2/debian/compat golang-1.16-1.16.2/debian/compat
--- golang-1.16-1.16.2/debian/compat	1969-12-31 21:00:00.000000000 -0300
+++ golang-1.16-1.16.2/debian/compat	2022-03-31 08:41:08.000000000 -0300
@@ -0,0 +1 @@
+11
diff -Nru golang-1.16-1.16.2/debian/control golang-1.16-1.16.2/debian/control
--- golang-1.16-1.16.2/debian/control	2021-05-10 08:41:08.000000000 -0300
+++ golang-1.16-1.16.2/debian/control	2022-03-31 08:41:08.000000000 -0300
@@ -12,7 +12,7 @@
            Dr. Tobias Quathamer <toddy@debian.org>
 Section: devel
 Priority: optional
-Build-Depends: debhelper-compat (= 12),
+Build-Depends: debhelper (>= 11),
                golang-any (>= 2:1.4~) | golang-go (>= 2:1.4~) | gccgo (>= 4:5~),
                netbase
 Standards-Version: 4.5.1
@@ -28,7 +28,6 @@
          ${perl:Depends},
          ${shlibs:Depends}
 Recommends: g++, gcc, libc6-dev, pkg-config
-Breaks: dh-golang (<< 1.43~)
 Suggests: bzr | brz, ca-certificates, git, mercurial, subversion
 Description: Go programming language compiler, linker, compiled stdlib
  The Go programming language is an open source project to make programmers more
diff -Nru golang-1.16-1.16.2/debian/control.in golang-1.16-1.16.2/debian/control.in
--- golang-1.16-1.16.2/debian/control.in	2021-05-10 08:41:08.000000000 -0300
+++ golang-1.16-1.16.2/debian/control.in	2022-03-31 08:41:08.000000000 -0300
@@ -8,7 +8,7 @@
            Dr. Tobias Quathamer <toddy@debian.org>
 Section: devel
 Priority: optional
-Build-Depends: debhelper-compat (= 12),
+Build-Depends: debhelper (>= 11),
                golang-any (>= 2:1.4~) | golang-go (>= 2:1.4~) | gccgo (>= 4:5~),
                netbase
 Standards-Version: 4.5.1
@@ -24,7 +24,6 @@
          ${perl:Depends},
          ${shlibs:Depends}
 Recommends: g++, gcc, libc6-dev, pkg-config
-Breaks: dh-golang (<< 1.43~)
 Suggests: bzr | brz, ca-certificates, git, mercurial, subversion
 Description: Go programming language compiler, linker, compiled stdlib
  The Go programming language is an open source project to make programmers more