diff --git a/src/Symfony/Bundle/FrameworkBundle/CacheWarmer/RouterCacheWarmer.php b/src/Symfony/Bundle/FrameworkBundle/CacheWarmer/RouterCacheWarmer.php
index 256bebebe80b7..a650960c948e2 100644
--- a/src/Symfony/Bundle/FrameworkBundle/CacheWarmer/RouterCacheWarmer.php
+++ b/src/Symfony/Bundle/FrameworkBundle/CacheWarmer/RouterCacheWarmer.php
@@ -19,6 +19,8 @@
  * Generates the router matcher and generator classes.
  *
  * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @final since version 3.4, to be given a container instead in 4.0
  */
 class RouterCacheWarmer implements CacheWarmerInterface
 {
diff --git a/src/Symfony/Bundle/FrameworkBundle/CacheWarmer/TranslationsCacheWarmer.php b/src/Symfony/Bundle/FrameworkBundle/CacheWarmer/TranslationsCacheWarmer.php
index 33f94650449fb..8a416a2925650 100644
--- a/src/Symfony/Bundle/FrameworkBundle/CacheWarmer/TranslationsCacheWarmer.php
+++ b/src/Symfony/Bundle/FrameworkBundle/CacheWarmer/TranslationsCacheWarmer.php
@@ -29,7 +29,7 @@ class TranslationsCacheWarmer implements CacheWarmerInterface
     /**
      * TranslationsCacheWarmer constructor.
      *
-     * @param ContainerInterface|TranslatorInterface $container
+     * @param ContainerInterface $container
      */
     public function __construct($container)
     {
@@ -38,8 +38,9 @@ public function __construct($container)
             $this->container = $container;
         } elseif ($container instanceof TranslatorInterface) {
             $this->translator = $container;
+            @trigger_error(sprintf('Using a "%s" as first argument of %s is deprecated since version 3.4 and will be unsupported in version 4.0. Use a %s instead.', TranslatorInterface::class, __CLASS__, ContainerInterface::class), E_USER_DEPRECATED);
         } else {
-            throw new \InvalidArgumentException(sprintf('%s only accepts instance of Symfony\Component\DependencyInjection\ContainerInterface or Symfony\Component\Translation\TranslatorInterface as first argument.', __CLASS__));
+            throw new \InvalidArgumentException(sprintf('%s only accepts instance of Symfony\Component\DependencyInjection\ContainerInterface as first argument.', __CLASS__));
         }
     }
 
diff --git a/src/Symfony/Bundle/TwigBundle/CacheWarmer/TemplateCacheWarmer.php b/src/Symfony/Bundle/TwigBundle/CacheWarmer/TemplateCacheWarmer.php
index 9a60a92e85375..5d45efc7e2f0c 100644
--- a/src/Symfony/Bundle/TwigBundle/CacheWarmer/TemplateCacheWarmer.php
+++ b/src/Symfony/Bundle/TwigBundle/CacheWarmer/TemplateCacheWarmer.php
@@ -30,8 +30,8 @@ class TemplateCacheWarmer implements CacheWarmerInterface
     /**
      * TemplateCacheWarmer constructor.
      *
-     * @param ContainerInterface|Environment $container
-     * @param \Traversable                   $iterator
+     * @param ContainerInterface $container
+     * @param \Traversable       $iterator
      */
     public function __construct($container, \Traversable $iterator)
     {
@@ -40,8 +40,9 @@ public function __construct($container, \Traversable $iterator)
             $this->container = $container;
         } elseif ($container instanceof Environment) {
             $this->twig = $container;
+            @trigger_error(sprintf('Using a "%s" as first argument of %s is deprecated since version 3.4 and will be unsupported in version 4.0. Use a %s instead.', Environment::class, __CLASS__, Container::class), E_USER_DEPRECATED);
         } else {
-            throw new \InvalidArgumentException(sprintf('%s only accepts instance of Symfony\Component\DependencyInjection\ContainerInterface or Environment as first argument.', __CLASS__));
+            throw new \InvalidArgumentException(sprintf('%s only accepts instance of Symfony\Component\DependencyInjection\ContainerInterface as first argument.', __CLASS__));
         }
 
         $this->iterator = $iterator;