diff --git a/src/Symfony/Component/Cache/phpunit.xml.dist b/src/Symfony/Component/Cache/phpunit.xml.dist
index 3e164e64b5..19128dcc13 100644
--- a/src/Symfony/Component/Cache/phpunit.xml.dist
+++ b/src/Symfony/Component/Cache/phpunit.xml.dist
@@ -5,6 +5,8 @@
          backupGlobals="false"
          colors="true"
          bootstrap="vendor/autoload.php"
+         failOnRisky="true"
+         failOnWarning="true"
 >
     <php>
         <ini name="error_reporting" value="-1" />
diff --git a/src/Symfony/Component/Workflow/phpunit.xml.dist b/src/Symfony/Component/Workflow/phpunit.xml.dist
index 5817db3b8f..8039a1db68 100644
--- a/src/Symfony/Component/Workflow/phpunit.xml.dist
+++ b/src/Symfony/Component/Workflow/phpunit.xml.dist
@@ -5,6 +5,8 @@
          backupGlobals="false"
          colors="true"
          bootstrap="vendor/autoload.php"
+         failOnRisky="true"
+         failOnWarning="true"
 >
     <php>
         <ini name="error_reporting" value="-1" />