diff --git a/.travis.yml b/.travis.yml
index 6cceac2f4..38b882f09 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,6 +8,14 @@ php:
   - 7.0
   - hhvm
 
+sudo: false
+
+cache:
+  directories:
+    - $HOME/.composer/cache
+    - $HOME/.cache/pip
+    - vendor
+
 env:
   global:
     - SYMFONY_DEPRECATIONS_HELPER=weak
@@ -15,7 +23,7 @@ env:
 matrix:
   fast_finish: true
   include:
-    - php: 5.3.3
+    - php: 5.3
       env: COMPOSER_FLAGS="--prefer-lowest"
     - php: 5.6
       env: SYMFONY_VERSION=2.3.*
@@ -34,12 +42,16 @@ matrix:
     - env: SYMFONY_VERSION="3.0.x-dev as 2.8"
 
 before_script:
+  - mkdir -p ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d
   - echo "memory_limit=-1" >> ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/travis.ini
+  - echo "extension = mongo.so" >> ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/travis.ini
   - composer selfupdate
+  - composer config -q github-oauth.github.com $GITHUB_OAUTH_TOKEN
   - if [ "$SYMFONY_VERSION" = "2.8.*@dev" ] || [ "$SYMFONY_VERSION" = "3.0.x-dev as 2.8" ]; then SYMFONY_DEPRECATIONS_HELPER=strict; fi;
   - if [ "$SYMFONY_VERSION" != "" ]; then composer require "symfony/symfony:${SYMFONY_VERSION}" --no-update; fi;
-  - composer update --prefer-source --no-interaction $COMPOSER_FLAGS
-  - sudo pip install -r Resources/doc/requirements.txt
+  - travis_wait composer update --prefer-dist --no-interaction $COMPOSER_FLAGS
+  - export PATH=$HOME/.local/bin:$PATH
+  - pip install -r Resources/doc/requirements.txt --user `whoami`
 
 script: make test