diff --git a/.travis.yml b/.travis.yml
index 7604e9c..ae6788a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,19 @@ php:
   - 5.4
   - 5.5
 
+env:
+  - SYMFONY_VERSION=2.0.*
+  - SYMFONY_VERSION=2.1.*
+  - SYMFONY_VERSION=2.2.*
+  - SYMFONY_VERSION=2.3.*
+  - SYMFONY_VERSION=dev-master
+
 before_script:
-  - curl -s http://getcomposer.org/installer | php
-  - php composer.phar install --dev --prefer-source
+  - composer require symfony/http-foundation:${SYMFONY_VERSION} --no-interaction --prefer-source
+
+script:
+  - phpunit --coverage-text
+
+matrix:
+  allow_failures:
+    - env: SYMFONY_VERSION=dev-master
diff --git a/composer.json b/composer.json
index be30779..21c98ae 100644
--- a/composer.json
+++ b/composer.json
@@ -24,7 +24,7 @@
         "ext-soap": "*",
         "ext-curl": "*",
         "ass/xmlsecurity": "dev-master",
-        "symfony/http-foundation": ">=2.0,<2.4-dev",
+        "symfony/framework-bundle": "~2.0",
         "zendframework/zend-mail": "2.1.*",
         "zendframework/zend-mime": "2.1.*",
         "zendframework/zend-soap": "2.1.*"
@@ -39,8 +39,8 @@
     "require-dev": {
         "ext-mcrypt": "*",
         "mikey179/vfsStream": "dev-master",
-        "symfony/filesystem": ">=2.3,<2.4-dev",
-        "symfony/process": ">=2.3,<2.4-dev"
+        "symfony/filesystem": "~2.3",
+        "symfony/process": "~2.3"
     },
     "autoload": {
         "psr-0": { "BeSimple\\": "src/" }
diff --git a/src/BeSimple/SoapBundle/WebServiceContext.php b/src/BeSimple/SoapBundle/WebServiceContext.php
index d18bb04..6e3249a 100644
--- a/src/BeSimple/SoapBundle/WebServiceContext.php
+++ b/src/BeSimple/SoapBundle/WebServiceContext.php
@@ -52,6 +52,8 @@ class WebServiceContext
         $this->typeRepository = $typeRepository;
         $this->converters     = $converters;
 
+        // Issue #6: keep the debug because the cache is invalid
+        $options['debug']     = true;
         $this->options        = $options;
     }
 
diff --git a/src/BeSimple/SoapBundle/composer.json b/src/BeSimple/SoapBundle/composer.json
index e1ff40b..dda002c 100644
--- a/src/BeSimple/SoapBundle/composer.json
+++ b/src/BeSimple/SoapBundle/composer.json
@@ -22,16 +22,16 @@
     "require": {
         "php": ">=5.3.0",
         "ext-soap": "*",
-        "besimple/soap-common": "self.version",
+        "besimple/soap-common": "0.1.*",
         "ass/xmlsecurity": "dev-master",
         "zendframework/zend-mail": "2.1.*",
         "zendframework/zend-mime": "2.1.*",
         "zendframework/zend-soap": "2.1.*",
-        "symfony/http-foundation": ">=2.0,<2.4-dev"
+        "symfony/framework-bundle": "~2.0"
     },
     "suggest": {
-        "besimple/soap-client": "self.version",
-        "besimple/soap-server": "self.version"
+        "besimple/soap-client": "0.1.*",
+        "besimple/soap-server": "0.1.*"
     },
     "autoload": {
         "psr-0": { "BeSimple\\SoapBundle": "" }
diff --git a/src/BeSimple/SoapClient/composer.json b/src/BeSimple/SoapClient/composer.json
index ed4f632..7622a45 100644
--- a/src/BeSimple/SoapClient/composer.json
+++ b/src/BeSimple/SoapClient/composer.json
@@ -23,13 +23,13 @@
         "php": ">=5.3.0",
         "ext-soap": "*",
         "ext-curl": "*",
-        "besimple/soap-common": "self.version",
+        "besimple/soap-common": "0.1.*",
         "ass/xmlsecurity": "dev-master"
     },
     "require-dev": {
         "mikey179/vfsStream": "dev-master",
-        "symfony/filesystem": ">=2.3,<2.4-dev",
-        "symfony/process": ">=2.3,<2.4-dev"
+        "symfony/filesystem": "~2.3",
+        "symfony/process": "~2.3"
     },
     "autoload": {
         "psr-0": { "BeSimple\\SoapClient": "" }
diff --git a/src/BeSimple/SoapServer/composer.json b/src/BeSimple/SoapServer/composer.json
index 21d4b0d..40b3e6a 100644
--- a/src/BeSimple/SoapServer/composer.json
+++ b/src/BeSimple/SoapServer/composer.json
@@ -22,7 +22,7 @@
     "require": {
         "php": ">=5.3.0",
         "ext-soap": "*",
-        "besimple/soap-common": "self.version"
+        "besimple/soap-common": "0.1.*"
     },
     "autoload": {
         "psr-0": { "BeSimple\\SoapServer": "" }