diff --git a/.travis.yml b/.travis.yml
index b78da67..31759d3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -32,7 +32,7 @@ before_install:
 install: composer update --prefer-dist --no-interaction $COMPOSER_FLAGS
 
 script:
-  - phpunit --coverage-clover=coverage.clover
+  - ./vendor/bin/phpunit --coverage-clover=coverage.clover
 
 after_script:
   - wget https://scrutinizer-ci.com/ocular.phar
diff --git a/Resources/config/services.yml b/Resources/config/services.yml
index f553d8c..5d5d5f4 100644
--- a/Resources/config/services.yml
+++ b/Resources/config/services.yml
@@ -4,7 +4,7 @@ parameters:
 
 services:
     doctrine_set_type.set_type_guesser:
-        class: %doctrine_set_type.set_type_guesser.class%
-        arguments: ["@doctrine", %doctrine.dbal.connection_factory.types%, %doctrine_set_type.set_type.class_name%]
+        class: "%doctrine_set_type.set_type_guesser.class%"
+        arguments: ["@doctrine", "%doctrine.dbal.connection_factory.types%", "%doctrine_set_type.set_type.class_name%"]
         tags:
             - { name: form.type_guesser }
diff --git a/composer.json b/composer.json
index 1ed2811..493700e 100644
--- a/composer.json
+++ b/composer.json
@@ -13,10 +13,18 @@
     ],
     "require": {
         "php": ">=5.5.0",
-        "symfony/symfony": "~2.6|~3.0",
+        "symfony/dependency-injection": "~2.6|~3.0",
+        "symfony/config": "~2.6|~3.0",
+        "symfony/http-kernel": "~2.6|~3.0",
+        "symfony/form": "~2.6|~3.0",
+        "symfony/validator": "~2.6|~3.0",
+        "symfony/yaml": "~2.6|~3.0",
+        "symfony/doctrine-bridge": "~2.6|~3.0",
+        "symfony/translation": "~2.6|~3.0",
         "doctrine/orm": "~2.3"
     },
     "require-dev": {
+        "phpunit/phpunit": ">=4.5.0,<6",
         "phake/phake": ">=2.0.0@dev"
     },
     "autoload": {