diff --git a/nixos/modules/services/misc/gitlab.nix b/nixos/modules/services/misc/gitlab.nix
index bb96e85456b0..efa139c8dfd2 100644
--- a/nixos/modules/services/misc/gitlab.nix
+++ b/nixos/modules/services/misc/gitlab.nix
@@ -193,6 +193,7 @@ in {
         gitAndTools.git
         ruby
         openssh
+        nodejs
       ];
       serviceConfig = {
         Type = "simple";
@@ -227,6 +228,7 @@ in {
         gitAndTools.git
         ruby
         openssh
+        nodejs
       ];
       preStart = ''
         # TODO: use env vars
diff --git a/nixos/tests/gitlab.nix b/nixos/tests/gitlab.nix
index d213624e332e..2b0715e97bc9 100644
--- a/nixos/tests/gitlab.nix
+++ b/nixos/tests/gitlab.nix
@@ -14,6 +14,7 @@ import ./make-test.nix {
   testScript = ''
     $gitlab->start();
     $gitlab->waitForUnit("gitlab.service");
-    $gitlab->waitUntilSucceeds("curl http://localhost:8080");
+    $gitlab->waitForUnit("gitlab-sidekiq.service");
+    $gitlab->waitUntilSucceeds("curl http://localhost:8080/users/sign_in");
   '';
 }
diff --git a/pkgs/applications/version-management/gitlab/Gemfile.lock b/pkgs/applications/version-management/gitlab/Gemfile.lock
index a7c6d626b129..8a1141d08611 100644
--- a/pkgs/applications/version-management/gitlab/Gemfile.lock
+++ b/pkgs/applications/version-management/gitlab/Gemfile.lock
@@ -281,7 +281,6 @@ GEM
       addressable (~> 2.3)
     letter_opener (1.1.2)
       launchy (~> 2.2)
-    libv8 (3.16.14.3)
     listen (2.3.1)
       celluloid (>= 0.15.2)
       rb-fsevent (>= 0.9.3)
@@ -421,7 +420,6 @@ GEM
       redis-store (~> 1.1.0)
     redis-store (1.1.4)
       redis (>= 2.2)
-    ref (1.0.5)
     request_store (1.0.5)
     require_all (1.3.2)
     rest-client (1.6.7)
@@ -520,9 +518,6 @@ GEM
     term-ansicolor (1.2.2)
       tins (~> 0.8)
     test_after_commit (0.2.2)
-    therubyracer (0.12.0)
-      libv8 (~> 3.16.14.0)
-      ref
     thin (1.6.1)
       daemons (>= 1.0.9)
       eventmachine (>= 1.0.0)
@@ -696,7 +691,6 @@ DEPENDENCIES
   stamp
   state_machine
   test_after_commit
-  therubyracer
   thin
   tinder (~> 1.9.2)
   turbolinks
diff --git a/pkgs/applications/version-management/gitlab/Gemfile.nix b/pkgs/applications/version-management/gitlab/Gemfile.nix
index 78b51178ac4b..2e05d883abf2 100644
--- a/pkgs/applications/version-management/gitlab/Gemfile.nix
+++ b/pkgs/applications/version-management/gitlab/Gemfile.nix
@@ -702,12 +702,6 @@ url = "http://rubygems.org/downloads/letter_opener-1.1.2.gem";
 version = "1.1.2";
 }
 {
-name = "libv8";
-hash = "64490f61e9aa928e2905e90fafde5403496925d7a9539026628b01854fd69862";
-url = "http://rubygems.org/downloads/libv8-3.16.14.3-x86_64-linux.gem";
-version = "3.16.14.3";
-}
-{
 name = "listen";
 hash = "5549b607337a95bb3248a97660ccaa0c3eeec70e01e61b8a08d4a6c36dd93720";
 url = "http://rubygems.org/downloads/listen-2.3.1.gem";
@@ -1086,12 +1080,6 @@ url = "http://rubygems.org/downloads/redis-store-1.1.4.gem";
 version = "1.1.4";
 }
 {
-name = "ref";
-hash = "8a8ec8f40f1e622c4324055d85300e03d9a78a9faf476ea0d382f1af9dbe0fa7";
-url = "http://rubygems.org/downloads/ref-1.0.5.gem";
-version = "1.0.5";
-}
-{
 name = "request_store";
 hash = "70adb9485eb22113bd165e259b929a449dfe2d2410a880566f06df6a164fc1cf";
 url = "http://rubygems.org/downloads/request_store-1.0.5.gem";
@@ -1374,12 +1362,6 @@ url = "http://rubygems.org/downloads/test_after_commit-0.2.2.gem";
 version = "0.2.2";
 }
 {
-name = "therubyracer";
-hash = "06a711c23c6fcabc60a38413d6e08023b4717b725c0f19b3fd3d6161f714b3a0";
-url = "http://rubygems.org/downloads/therubyracer-0.12.0.gem";
-version = "0.12.0";
-}
-{
 name = "thin";
 hash = "a0b80e1632d3529a5c4b87e07d9ab146e0dde5e506c20f3a740fe8b364d5bd18";
 url = "http://rubygems.org/downloads/thin-1.6.1.gem";
diff --git a/pkgs/applications/version-management/gitlab/bootstrap.nix b/pkgs/applications/version-management/gitlab/bootstrap.nix
index 1b3c1eec9c26..a983ede333a8 100644
--- a/pkgs/applications/version-management/gitlab/bootstrap.nix
+++ b/pkgs/applications/version-management/gitlab/bootstrap.nix
@@ -30,6 +30,8 @@ in stdenv.mkDerivation rec {
       adapter: postgresql
     EOF
 
+    substituteInPlace Gemfile --replace 'gem "therubyracer"' ""
+
     bundle config --local build.nokogiri --use-system-libraries \
       --with-iconv-dir=${libiconv} \
       --with-xslt-dir=${libxslt} \
diff --git a/pkgs/applications/version-management/gitlab/default.nix b/pkgs/applications/version-management/gitlab/default.nix
index 76f4bb1fc706..2e0fcc43eb74 100644
--- a/pkgs/applications/version-management/gitlab/default.nix
+++ b/pkgs/applications/version-management/gitlab/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, ruby, rubyLibs, libiconv, libxslt, libxml2, pkgconfig, libffi, postgresql, libyaml, ncurses, curl, openssh, redis, zlib, icu, checkinstall, logrotate, docutils, cmake, git, gdbm, readline, unzip, gnumake, which, tzdata }:
+{ stdenv, fetchurl, ruby, rubyLibs, libiconv, libxslt, libxml2, pkgconfig, libffi, postgresql, libyaml, ncurses, curl, openssh, redis, zlib, icu, checkinstall, logrotate, docutils, cmake, git, gdbm, readline, unzip, gnumake, which, tzdata, nodejs }:
 
 let
   gemspec = map (gem: fetchurl { url=gem.url; sha256=gem.hash; }) (import ./Gemfile.nix);
@@ -15,7 +15,7 @@ in stdenv.mkDerivation rec {
 
   buildInputs = [
     ruby rubyLibs.bundler libyaml gdbm readline ncurses curl openssh redis zlib
-    postgresql libxslt libxml2 pkgconfig libffi icu checkinstall logrotate docutils
+    postgresql libxslt libxml2 pkgconfig libffi icu checkinstall logrotate docutils nodejs
     git unzip gnumake which cmake
   ];
 
@@ -51,6 +51,9 @@ in stdenv.mkDerivation rec {
     mkdir -p vendor/cache
     ${stdenv.lib.concatStrings (map (gem: "ln -s ${gem} vendor/cache/${gem.name};") gemspec)}
 
+    cp ${./Gemfile.lock} Gemfile.lock
+    substituteInPlace Gemfile --replace 'gem "therubyracer"' ""
+
     bundle config build.nokogiri \
       --use-system-libraries \
       --with-xslt-dir=${libxslt} \