diff --git a/debian/control b/debian/control
index d4731d98cd..e595e50497 100644
--- a/debian/control
+++ b/debian/control
@@ -50,7 +50,7 @@ Depends: ${shlibs:Depends}, ${misc:Depends},
  ruby-marginalia (>= 1.8~),
 # Authentication libraries
  ruby-devise (>= 4.6.2~),
- ruby-doorkeeper (>= 4.3~),
+ # ruby-doorkeeper (>= 4.3~), (embedded)
  ruby-doorkeeper-openid-connect (>= 1.5~),
  ruby-omniauth (>= 1.8~),
  ruby-omniauth-auth0 (>= 2.0~),
diff --git a/debian/gbp.conf b/debian/gbp.conf
index 7becee21c1..1970550ad1 100644
--- a/debian/gbp.conf
+++ b/debian/gbp.conf
@@ -1,2 +1,2 @@
 [DEFAULT]
-component = [ 'core-js', 'derailed-benchmarks', 'heapy', 'elasticsearch-model', 'elasticsearch-rails', 'faraday-middleware-aws-signers-v4' ]
+component = [ 'core-js', 'derailed-benchmarks', 'heapy', 'elasticsearch-model', 'elasticsearch-rails', 'faraday-middleware-aws-signers-v4', 'doorkeeper' ]
diff --git a/debian/gitlab.install b/debian/gitlab.install
index abb8a51012..6f5e792930 100644
--- a/debian/gitlab.install
+++ b/debian/gitlab.install
@@ -69,3 +69,4 @@ heapy usr/share/gitlab/vendor/gems
 elasticsearch-model usr/share/gitlab/vendor/gems
 elasticsearch-rails usr/share/gitlab/vendor/gems
 faraday-middleware-aws-signers-v4 usr/share/gitlab/vendor/gems
+doorkeeper usr/share/gitlab/vendor/gems
diff --git a/debian/patches/0780-embed-doorkeeper.patch b/debian/patches/0780-embed-doorkeeper.patch
new file mode 100644
index 0000000000..af1c432d9d
--- /dev/null
+++ b/debian/patches/0780-embed-doorkeeper.patch
@@ -0,0 +1,16 @@
+Description: This patch embeds doorkeeper.
+Author: Utkarsh Gupta <utkarsh@debian.org>
+Bug-Debian: https://bugs.debian.org/947754
+Last-Update: 2020-01-03
+
+--- a/Gemfile
++++ b/Gemfile
+@@ -26,7 +26,7 @@
+ 
+ # Authentication libraries
+ gem 'devise', '~> 4.6'
+-gem 'doorkeeper', '~> 4.3'
++gem 'doorkeeper', '~> 4.3', path: 'vendor/gems/doorkeeper'
+ gem 'doorkeeper-openid_connect', '~> 1.5'
+ gem 'omniauth', '~> 1.8'
+ gem 'omniauth-auth0', '~> 2.0'
diff --git a/debian/patches/series b/debian/patches/series
index e1e209eda5..8e5eefd71c 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -32,3 +32,4 @@
 0750-fix-relative-paths.patch
 0760-bump-rubyzip.patch
 0770-bump-node-d3.patch
+0780-embed-doorkeeper.patch
diff --git a/debian/upstream-file-list b/debian/upstream-file-list
index 03644a5975..25e2b2f1ba 100644
--- a/debian/upstream-file-list
+++ b/debian/upstream-file-list
@@ -68,6 +68,7 @@ derailed-benchmarks
 doc
 docker
 docker-compose.yml
+doorkeeper
 elasticsearch-model
 elasticsearch-rails
 faraday-middleware-aws-signers-v4
diff --git a/debian/watch b/debian/watch
index ac45631694..cd1b5bbfdc 100644
--- a/debian/watch
+++ b/debian/watch
@@ -23,3 +23,6 @@ https://gemwatch.debian.net/elasticsearch-model .*/elasticsearch-rails-(0.1.*).t
 
 opts="pgpmode=none,component=faraday-middleware-aws-signers-v4" \
 https://gemwatch.debian.net/faraday_middleware-aws-signers-v4 .*/faraday_middleware-aws-signers-v4-(0.1.*).tar.gz ignore
+
+opts="pgpmode=none,component=doorkeeper" \
+https://gemwatch.debian.net/doorkeeper .*/doorkeeper-(4.3.*).tar.gz ignore