diff --git a/.travis.yml b/.travis.yml
index 17f9c064..d4084eb5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,10 @@
 language: php
 
+sudo: false
+
+cache:
+  directories:
+    - $HOME/.composer/cache
 php:
   - 5.3
   - 5.4
@@ -9,12 +14,18 @@ php:
   - hhvm
 
 matrix:
-    allow_failures:
-        - php: hhvm
-        - php: 7.0
+  include:
+    - php: 5.6
+      env: SYMFONY_VERSION="2.3.*"
+    - php: 5.6
+      env: SYMFONY_VERSION="2.8.*@dev symfony/phpunit-bridge:~2.7"
+    - php: 5.6
+      env: SYMFONY_VERSION="3.0.*@dev"
+  fast_finish: true
+
+before_install: if [[ "$SYMFONY_VERSION" != "" ]]; then composer require --no-update symfony/symfony:${SYMFONY_VERSION}; fi
 
-before_script:
-    - composer install --prefer-dist
+install: composer update --prefer-dist
 
 script:
-    - bin/phpunit
+    - vendor/bin/phpunit
diff --git a/composer.json b/composer.json
index 15b9d704..fd85f8c6 100644
--- a/composer.json
+++ b/composer.json
@@ -17,14 +17,16 @@
     ],
     "require": {
         "php": ">=5.3.3",
-        "symfony/process": "~2.1"
+        "symfony/process": "~2.3|~3.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "4.7.*"
+        "phpunit/phpunit": "~4.7"
     },
     "suggest": {
         "h4cc/wkhtmltopdf-amd64": "Provides wkhtmltopdf-amd64 binary for Linux-compatible machines, use version `~0.12` as dependency",
         "h4cc/wkhtmltopdf-i386": "Provides wkhtmltopdf-i386 binary for Linux-compatible machines, use version `~0.12` as dependency",
+        "h4cc/wkhtmltoimage-amd64": "Provides wkhtmltoimage-amd64 binary for Linux-compatible machines, use version `~0.12` as dependency",
+        "h4cc/wkhtmltoimage-i386": "Provides wkhtmltoimage-i386 binary for Linux-compatible machines, use version `~0.12` as dependency",
         "wemersonjanuario/wkhtmltopdf-windows": "Provides wkhtmltopdf executable for Windows, use version `~0.12` as dependency"
     },
     "autoload": {
@@ -36,8 +38,5 @@
         "branch-alias": {
             "dev-master": "0.5.x-dev"
         }
-    },
-    "config": {
-        "bin-dir": "bin"
     }
 }