diff --git a/.travis.yml b/.travis.yml
index 18dd0dc002..54311028e2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,12 +1,12 @@
 #-- copyright
 # OpenProject is a project management system.
-# Copyright (C) 2012-2015 the OpenProject Foundation (OPF)
+# Copyright (C) 2012-2017 the OpenProject Foundation (OPF)
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License version 3.
 #
 # OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
-# Copyright (C) 2006-2013 Jean-Philippe Lang
+# Copyright (C) 2006-2017 Jean-Philippe Lang
 # Copyright (C) 2010-2013 the ChiliProject Team
 #
 # This program is free software; you can redistribute it and/or
@@ -33,7 +33,7 @@
 language: ruby
 
 rvm:
-  - 2.2.5
+  - 2.4.1
 
 sudo: false
 
@@ -41,10 +41,6 @@ cache:
   bundler: true
   directories:
     - frontend/node_modules
-    - frontend/bower_components
-
-
-bundler_args: --without development production docker
 
 branches:
   only:
@@ -56,23 +52,23 @@ env:
   global:
     - CI=true
     - RAILS_ENV=test
-    - COVERAGE=true
 
   matrix:
-    - "TEST_SUITE=plugins:spec      DB=mysql    GROUP_SIZE=1 GROUP=1"
+    - "TEST_SUITE=plugins:specs     DB=mysql    GROUP_SIZE=1 GROUP=1"
     - "TEST_SUITE=plugins:cucumber  DB=mysql    GROUP_SIZE=1 GROUP=1"
 
     - "TEST_SUITE=npm"
 
     - "TEST_SUITE=spec_legacy       DB=mysql"
-    - "TEST_SUITE=cucumber          DB=mysql     GROUP_SIZE=2  GROUP=1"
-    - "TEST_SUITE=cucumber          DB=mysql     GROUP_SIZE=2  GROUP=2"
-    - "TEST_SUITE=specs             DB=mysql     GROUP_SIZE=3  GROUP=1"
-    - "TEST_SUITE=specs             DB=mysql     GROUP_SIZE=3  GROUP=2"
-    - "TEST_SUITE=specs             DB=mysql     GROUP_SIZE=3  GROUP=3"
-    - "TEST_SUITE=features          DB=mysql     GROUP_SIZE=3  GROUP=1"
-    - "TEST_SUITE=features          DB=mysql     GROUP_SIZE=3  GROUP=2"
-    - "TEST_SUITE=features          DB=mysql     GROUP_SIZE=3  GROUP=3"
+    - "TEST_SUITE=cucumber          DB=mysql     GROUP_SIZE=1  GROUP=1"
+    - "TEST_SUITE=specs             DB=mysql     GROUP_SIZE=4  GROUP=1"
+    - "TEST_SUITE=specs             DB=mysql     GROUP_SIZE=4  GROUP=2"
+    - "TEST_SUITE=specs             DB=mysql     GROUP_SIZE=4  GROUP=3"
+    - "TEST_SUITE=specs             DB=mysql     GROUP_SIZE=4  GROUP=4"
+    - "TEST_SUITE=features          DB=mysql     GROUP_SIZE=4  GROUP=1"
+    - "TEST_SUITE=features          DB=mysql     GROUP_SIZE=4  GROUP=2"
+    - "TEST_SUITE=features          DB=mysql     GROUP_SIZE=4  GROUP=3"
+    - "TEST_SUITE=features          DB=mysql     GROUP_SIZE=4  GROUP=4"
 
 before_install:
   # Custom plugin instructions follow.
@@ -90,32 +86,36 @@ before_install:
   - git checkout openproject/$TRAVIS_BRANCH
 
   # End of custom plugin instructions.
-  - "rvm @default,@global do gem uninstall bundler -a -x"
-  - gem install bundler -v 1.12.5
-  - echo `bundle -v`
   - "echo `firefox -v`"
   - "export DISPLAY=:99.0"
   - "/sbin/start-stop-daemon --start -v --pidfile ./tmp/custom_xvfb_99.pid --make-pidfile --background --exec /usr/bin/Xvfb -- :99 -ac -screen 0 1920x1080x16"
   - "echo `xdpyinfo -display :99 | grep 'dimensions' | awk '{ print $2 }'`"
+
   # Install Node LTS Boron (6.9.1)
-  - nvm install 6.9.1
-  # We need npm 4.0 for a bugfix in cross-platform shrinkwrap
-  # https://github.com/npm/npm/issues/14042
-  - npm install npm@4.0
-  - travis_retry npm install
-
-  # We need phantomjs 2.0 to get tests passing
-  - mkdir travis-phantomjs
-  - wget https://s3.amazonaws.com/travis-phantomjs/phantomjs-2.0.0-ubuntu-12.04.tar.bz2 -O $PWD/travis-phantomjs/phantomjs-2.0.0-ubuntu-12.04.tar.bz2
-  - tar -xvf $PWD/travis-phantomjs/phantomjs-2.0.0-ubuntu-12.04.tar.bz2 -C $PWD/travis-phantomjs
-  - export PATH=$PWD/travis-phantomjs:$PATH
+  - "nvm install 6.9.1"
+
+bundler_args: --binstubs --without development production docker
 
 before_script:
-  - sh script/ci_setup.sh $DB
+  - sh script/ci_setup.sh $TEST_SUITE $DB
 
 script:
   - sh script/ci_runner.sh
 
+notifications:
+  email: false
+  slack:
+    on_success: change
+    on_failure: always
+    on_pull_requests: false
+    rooms:
+      # CE
+      - secure: "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"
+      # EE
+      - secure: "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"
+      # MP
+      - secure: "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"
+
 addons:
   firefox: "45.0esr"
   postgresql: "9.3"