diff --git a/.gitignore b/.gitignore
index 22d0d82..3e52175 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,3 @@
+*.swp
+tags
 vendor
diff --git a/LICENSE b/LICENSE
index 80445fb..b57a6c2 100644
--- a/LICENSE
+++ b/LICENSE
@@ -20,5 +20,4 @@ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\ No newline at end of file
diff --git a/README.md b/README.md
index a83c640..3b2a3d3 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 csv-validator
 =============
 
-[![](https://phpci.gitnet.fr/build-status/image/2?branch=master&label=PHPCensor&style=flat-square)](https://phpci.gitnet.fr/build-status/view/2)
+![](https://phpci.gitnet.fr//build-status/image/1)
 
 CSV validator library
 
diff --git a/composer.json b/composer.json
index 4e561ff..4e8a836 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
     "minimum-stability": "dev",
     "require": {
         "php": ">=5.6.0",
-        "symfony/validator": "3.*",
+        "symfony/validator": "2.*",
         "deblan/csv": "v2.0.*"
     }
 }
diff --git a/example.php b/example.php
index e764726..595e5c5 100644
--- a/example.php
+++ b/example.php
@@ -2,6 +2,7 @@
 
 use Deblan\Csv\CsvParser;
 use Deblan\CsvValidator\Validator;
+use Symfony\Component\Validator\Validation;
 use Symfony\Component\Validator\Constraints\Email;
 use Symfony\Component\Validator\Constraints\Date;
 use Symfony\Component\Validator\Constraints\Callback;
@@ -22,7 +23,7 @@ $validator->addFieldConstraint(1, new Date());
 $validator->setExpectedHeaders(['foo', 'bar', 'bim']);
 
 // An line must contain 3 columns
-$validator->addDataConstraint(new Callback(function ($data, ExecutionContextInterface $context) {
+$validator->addDataConstraint(new Callback(function($data, ExecutionContextInterface $context) {
     if (count($data) !== 6) { // 6 because of the legend (3 fields * 2)
         $context->addViolation('The line must contain 3 columns');
     }