diff --git a/README.md b/README.md
index 50b78b5..d8b3f44 100644
--- a/README.md
+++ b/README.md
@@ -1,12 +1,8 @@
 Gregwar's CaptchaBundle
 =====================
 
-The `GregwarCaptchaBundle` adds support for a "captcha" form type for the
-Symfony2 form component.
-
-Important note: the master of this repository is containing current development
-in order to work with Symfony 2.1. If you are using Symfony 2.0 please checkout
-the 2.0 branch.
+The `GregwarCaptchaBundle` adds support for a captcha form type for the
+Symfony form component.
 
 Installation
 ============
@@ -17,7 +13,15 @@ Ultimately, the GregwarCaptchaBundle files should be downloaded to the
 'vendor/bundles/Gregwar/CaptchaBundle' directory.
 
 You can accomplish this several ways, depending on your personal preference.
-The first method is the standard Symfony2 method.
+The first method is the standard Symfony method.
+
+***Using Composer***
+
+Use composer require to download and install the package.
+
+``` bash
+    composer require gregwar/captcha-bundle
+```
 
 ***Using the vendors script***
 
@@ -45,14 +49,6 @@ $ git submodule add git://github.com/Gregwar/CaptchaBundle.git vendor/bundles/Gr
 $ git submodule update --init
 ```
 
-***Using Composer***
-
-Use composer require to download and install the package.
-
-``` bash
-    composer require gregwar/captcha-bundle
-```
-
 ### Step 2: Configure the Autoloader
 
 If you use composer, you can skip this step.
@@ -99,8 +95,9 @@ You can use the "captcha" type in your forms this way:
 
 ```php
 <?php
+    use Gregwar\CaptchaBundle\Type\CaptchaType;
     // ...
-    $builder->add('captcha', 'captcha'); // That's all !
+    $builder->add('captcha', CaptchaType::class); // That's all !
     // ...
 ```
 
@@ -147,8 +144,9 @@ Example :
 
 ```php
 <?php
+    use Gregwar\CaptchaBundle\Type\CaptchaType;
     // ...
-    $builder->add('captcha', 'captcha', array(
+    $builder->add('captcha', CaptchaType::class, array(
         'width' => 200,
         'height' => 50,
         'length' => 6,
diff --git a/Type/CaptchaType.php b/Type/CaptchaType.php
index 456d121..0da5afb 100644
--- a/Type/CaptchaType.php
+++ b/Type/CaptchaType.php
@@ -11,6 +11,7 @@ use Symfony\Component\OptionsResolver\OptionsResolver;
 use Symfony\Component\OptionsResolver\OptionsResolverInterface;
 use Symfony\Component\Form\FormEvents;
 use Symfony\Component\Translation\TranslatorInterface;
+use Symfony\Component\Form\Extension\Core\Type\TextType;
 
 use Gregwar\CaptchaBundle\Validator\CaptchaValidator;
 use Gregwar\CaptchaBundle\Generator\CaptchaGenerator;
@@ -143,7 +144,7 @@ class CaptchaType extends AbstractType
      */
     public function getParent()
     {
-        return 'text';
+        return TextType::class;
     }
 
     /**
diff --git a/composer.json b/composer.json
index d1e81e6..22b31c8 100644
--- a/composer.json
+++ b/composer.json
@@ -19,8 +19,8 @@
     "require": {
         "php": ">=5.5.0",
         "gregwar/captcha": "~1.1",
-        "symfony/framework-bundle": "~2.1",
-        "symfony/form": "~2.1"
+        "symfony/framework-bundle": "~2.1 || ~3.0",
+        "symfony/form": "~2.1 || ~3.0"
     },
     "autoload": {
         "psr-4": {