diff --git a/Gemfile b/Gemfile
index 0c0addb78058bbad6379573354769692b1c56b0f..e55c2a439675dae450d91c2b3a53d94aed1a6cbf 100644
--- a/Gemfile
+++ b/Gemfile
@@ -29,7 +29,7 @@ gem 'omniauth-github'
 
 # Extracting information from a git repository
 # Provide access to Gitlab::Git library
-gem "gitlab_git", "~> 4.0.0"
+gem "gitlab_git", "~> 4.1.0"
 
 # Ruby/Rack Git Smart-HTTP Server Handler
 gem 'gitlab-grack', '~> 2.0.0.pre', require: 'grack'
@@ -37,14 +37,11 @@ gem 'gitlab-grack', '~> 2.0.0.pre', require: 'grack'
 # LDAP Auth
 gem 'gitlab_omniauth-ldap', '1.0.3', require: "omniauth-ldap"
 
-# Syntax highlighter
-gem "gitlab-pygments.rb", '~> 0.5.4', require: 'pygments.rb'
-
 # Git Wiki
-gem "gitlab-gollum-lib", "~> 1.0.2", require: 'gollum-lib'
+gem "gitlab-gollum-lib", "~> 1.1.0", require: 'gollum-lib'
 
 # Language detection
-gem "gitlab-linguist", "~> 2.9.6", require: "linguist"
+gem "gitlab-linguist", "~> 2.9.6", require: "linguist", git: 'https://gitlab.com/gitlab-org/linguist.git', ref: 'b337f7013333863503a8a7894cceb568478fda66'
 
 # API
 gem "grape", "~> 0.6.1"
diff --git a/Gemfile.lock b/Gemfile.lock
index 2c821a9b90706a5e9be641a736d504697ace3549..ae6e6b52d0461f1f61825cd835f6a2c226f09c18 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -5,6 +5,16 @@ GIT
   specs:
     github-markup (0.7.6)
 
+GIT
+  remote: https://gitlab.com/gitlab-org/linguist.git
+  revision: b337f7013333863503a8a7894cceb568478fda66
+  ref: b337f7013333863503a8a7894cceb568478fda66
+  specs:
+    gitlab-linguist (2.9.6)
+      charlock_holmes (~> 0.6.6)
+      escape_utils (~> 0.2.4)
+      mime-types (~> 1.19)
+
 GEM
   remote: https://rubygems.org/
   specs:
@@ -158,11 +168,10 @@ GEM
     gitlab-flowdock-git-hook (0.4.2.2)
       gitlab-grit (>= 2.4.1)
       multi_json
-    gitlab-gollum-lib (1.0.2)
+    gitlab-gollum-lib (1.1.0)
       github-markdown (~> 0.5.3)
       github-markup (>= 0.7.5, < 1.0.0)
       gitlab-grit (~> 2.6.1)
-      gitlab-pygments.rb (~> 0.5.4)
       nokogiri (~> 1.5.9)
       sanitize (~> 2.0.3)
       stringex (~> 1.5.1)
@@ -173,19 +182,10 @@ GEM
       diff-lcs (~> 1.1)
       mime-types (~> 1.15)
       posix-spawn (~> 0.3.6)
-    gitlab-linguist (2.9.6)
-      charlock_holmes (~> 0.6.6)
-      escape_utils (~> 0.2.4)
-      gitlab-pygments.rb (~> 0.5.4)
-      mime-types (~> 1.19)
-    gitlab-pygments.rb (0.5.4)
-      posix-spawn (~> 0.3.6)
-      yajl-ruby (~> 1.1.0)
-    gitlab_git (4.0.0)
+    gitlab_git (4.1.0)
       activesupport (~> 4.0.0)
       gitlab-grit (~> 2.6.1)
       gitlab-linguist (~> 2.9.5)
-      gitlab-pygments.rb (~> 0.5.4)
     gitlab_meta (6.0)
     gitlab_omniauth-ldap (1.0.3)
       net-ldap (~> 0.3.1)
@@ -543,7 +543,6 @@ GEM
     websocket-driver (0.3.1)
     xpath (2.0.0)
       nokogiri (~> 1.3)
-    yajl-ruby (1.1.0)
 
 PLATFORMS
   ruby
@@ -578,11 +577,10 @@ DEPENDENCIES
   gemoji (~> 1.3.0)
   github-markup (~> 0.7.4)!
   gitlab-flowdock-git-hook (~> 0.4.2)
-  gitlab-gollum-lib (~> 1.0.2)
+  gitlab-gollum-lib (~> 1.1.0)
   gitlab-grack (~> 2.0.0.pre)
-  gitlab-linguist (~> 2.9.6)
-  gitlab-pygments.rb (~> 0.5.4)
-  gitlab_git (~> 4.0.0)
+  gitlab-linguist (~> 2.9.6)!
+  gitlab_git (~> 4.1.0)
   gitlab_meta (= 6.0)
   gitlab_omniauth-ldap (= 1.0.3)
   gon (~> 5.0.0)
diff --git a/config/initializers/3_grit_ext.rb b/config/initializers/3_grit_ext.rb
index 8b298e821e795e766f3e849b83911b3060fd51d2..6540ac839cb1e5242678ee25b35b129c4bee8237 100644
--- a/config/initializers/3_grit_ext.rb
+++ b/config/initializers/3_grit_ext.rb
@@ -1,5 +1,4 @@
 require 'grit'
-require 'pygments'
 
 Grit::Git.git_binary = Gitlab.config.git.bin_path
 Grit::Git.git_timeout = Gitlab.config.git.timeout
diff --git a/doc/install/installation.md b/doc/install/installation.md
index 575f776de587bba9de8f4df6d30ba37a391ef361..e1ffe9eea5b82ed533f07cad8dcb8c1e86bfad45 100644
--- a/doc/install/installation.md
+++ b/doc/install/installation.md
@@ -56,23 +56,6 @@ Install the required packages:
 
     sudo apt-get install -y build-essential zlib1g-dev libyaml-dev libssl-dev libgdbm-dev libreadline-dev libncurses5-dev libffi-dev curl openssh-server redis-server checkinstall libxml2-dev libxslt-dev libcurl4-openssl-dev libicu-dev logrotate
 
-Make sure you have the right version of Python installed.
-
-    # Install Python
-    sudo apt-get install -y python
-
-    # Make sure that Python is 2.5+ (3.x is not supported at the moment)
-    python --version
-
-    # If it's Python 3 you might need to install Python 2 separately
-    sudo apt-get install -y python2.7
-
-    # Make sure you can access Python via python2
-    python2 --version
-
-    # If you get a "command not found" error create a link to the python binary
-    sudo ln -s /usr/bin/python /usr/bin/python2
-
     # For reStructuredText markup language support install required package:
     sudo apt-get install -y python-docutils