diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1344cb26..329aeac9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,7 +6,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## Unreleased
  
- - ...
+
+## 3.4.1 (2020-01-24)
+ - Fix issue due to usage of `class_alias` to fix deprecations, which could break BC layers of third party packages (#309, thanks to @scheb)
 
 ## 3.4.0 (2020-01-20)
  - Add support for `sentry/sentry` 2.3 (#298)
diff --git a/src/EventListener/RequestListener.php b/src/EventListener/RequestListener.php
index 0e81b68f..c7a784a6 100644
--- a/src/EventListener/RequestListener.php
+++ b/src/EventListener/RequestListener.php
@@ -9,15 +9,24 @@
 use Symfony\Component\HttpKernel\Event\FilterControllerEvent;
 use Symfony\Component\HttpKernel\Event\GetResponseEvent;
 use Symfony\Component\HttpKernel\Event\RequestEvent;
+use Symfony\Component\HttpKernel\Kernel;
 use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
 use Symfony\Component\Security\Core\User\UserInterface;
 
-if (! class_exists(RequestEvent::class)) {
-    class_alias(GetResponseEvent::class, RequestEvent::class);
-}
-
-if (! class_exists(ControllerEvent::class)) {
-    class_alias(FilterControllerEvent::class, ControllerEvent::class);
+if (Kernel::MAJOR_VERSION >= 5) {
+    if (! class_exists('Sentry\SentryBundle\EventListener\UserContextRequestEvent')) {
+        class_alias(RequestEvent::class, 'Sentry\SentryBundle\EventListener\UserContextRequestEvent');
+    }
+    if (! class_exists('Sentry\SentryBundle\EventListener\UserContextControllerEvent')) {
+        class_alias(ControllerEvent::class, 'Sentry\SentryBundle\EventListener\UserContextControllerEvent');
+    }
+} else {
+    if (! class_exists('Sentry\SentryBundle\EventListener\UserContextRequestEvent')) {
+        class_alias(GetResponseEvent::class, 'Sentry\SentryBundle\EventListener\UserContextRequestEvent');
+    }
+    if (! class_exists('Sentry\SentryBundle\EventListener\UserContextControllerEvent')) {
+        class_alias(FilterControllerEvent::class, 'Sentry\SentryBundle\EventListener\UserContextControllerEvent');
+    }
 }
 
 /**
@@ -48,9 +57,9 @@ public function __construct(
     /**
      * Set the username from the security context by listening on core.request
      *
-     * @param RequestEvent $event
+     * @param UserContextRequestEvent $event
      */
-    public function onKernelRequest(RequestEvent $event): void
+    public function onKernelRequest(UserContextRequestEvent $event): void
     {
         if (! $event->isMasterRequest()) {
             return;
@@ -85,7 +94,7 @@ public function onKernelRequest(RequestEvent $event): void
             });
     }
 
-    public function onKernelController(ControllerEvent $event): void
+    public function onKernelController(UserContextControllerEvent $event): void
     {
         if (! $event->isMasterRequest()) {
             return;
diff --git a/src/EventListener/SubRequestListener.php b/src/EventListener/SubRequestListener.php
index 87970ac1..5fd4fe16 100644
--- a/src/EventListener/SubRequestListener.php
+++ b/src/EventListener/SubRequestListener.php
@@ -6,9 +6,16 @@
 use Symfony\Component\HttpKernel\Event\FinishRequestEvent;
 use Symfony\Component\HttpKernel\Event\GetResponseEvent;
 use Symfony\Component\HttpKernel\Event\RequestEvent;
+use Symfony\Component\HttpKernel\Kernel;
 
-if (! class_exists(RequestEvent::class)) {
-    class_alias(GetResponseEvent::class, RequestEvent::class);
+if (Kernel::MAJOR_VERSION >= 5) {
+    if (! class_exists('Sentry\SentryBundle\EventListener\UserContextRequestEvent')) {
+        class_alias(RequestEvent::class, 'Sentry\SentryBundle\EventListener\UserContextRequestEvent');
+    }
+} else {
+    if (! class_exists('Sentry\SentryBundle\EventListener\UserContextRequestEvent')) {
+        class_alias(GetResponseEvent::class, 'Sentry\SentryBundle\EventListener\UserCon textRequestEvent');
+    }
 }
 
 final class SubRequestListener
@@ -16,9 +23,9 @@ final class SubRequestListener
     /**
      * Pushes a new {@see Scope} for each SubRequest
      *
-     * @param RequestEvent $event
+     * @param UserContextRequestEvent $event
      */
-    public function onKernelRequest(RequestEvent $event): void
+    public function onKernelRequest(UserContextRequestEvent $event): void
     {
         if ($event->isMasterRequest()) {
             return;