diff --git a/modules/quant_purger/src/Plugin/Purge/Queuer/QuantPurger.php b/modules/quant_purger/src/Plugin/Purge/Queuer/QuantPurger.php
index a0182014..bc215d98 100644
--- a/modules/quant_purger/src/Plugin/Purge/Queuer/QuantPurger.php
+++ b/modules/quant_purger/src/Plugin/Purge/Queuer/QuantPurger.php
@@ -4,14 +4,12 @@
 
 use Drupal\Core\Cache\CacheTagsInvalidatorInterface;
 use Drupal\quant\Plugin\QueueItem\RouteItem;
-use Symfony\Component\DependencyInjection\ContainerAwareInterface;
-use Symfony\Component\DependencyInjection\ContainerAwareTrait;
+use Psr\Container\ContainerInterface;
 
 /**
  * Queues URLs with Quant when Drupal invalidates cache tags.
  */
-class QuantPurger implements CacheTagsInvalidatorInterface, ContainerAwareInterface {
-  use ContainerAwareTrait;
+class QuantPurger implements CacheTagsInvalidatorInterface {
 
   /**
    * A list of tags that have already been invalidated in this request.
@@ -55,6 +53,18 @@ class QuantPurger implements CacheTagsInvalidatorInterface, ContainerAwareInterf
    */
   protected $quantSeedQueue;
 
+  /**
+   * The service container.
+   */
+  protected ContainerInterface $container;
+
+  /**
+   * Sets the service container.
+   */
+  public function setContainer(ContainerInterface $container): void {
+    $this->container = $container;
+  }
+
   /**
    * Initialize the invalidation factory and queue service.
    *