diff --git a/Validator/AuthorizationValidator.php b/Validator/AuthorizationValidator.php
index ac889bff..f84fdb6c 100644
--- a/Validator/AuthorizationValidator.php
+++ b/Validator/AuthorizationValidator.php
@@ -10,11 +10,9 @@
 
 class AuthorizationValidator extends ConstraintValidator
 {
-    protected AuthorizerInterface $authorizer;
-
-    public function __construct(AuthorizerInterface $authorizer)
-    {
-        $this->authorizer = $authorizer;
+    public function __construct(
+        protected AuthorizerInterface $authorizer
+    ) {
     }
 
     /**
diff --git a/Validator/ReplyAuthorizationValidator.php b/Validator/ReplyAuthorizationValidator.php
index c2fbaaa3..18ae59e0 100644
--- a/Validator/ReplyAuthorizationValidator.php
+++ b/Validator/ReplyAuthorizationValidator.php
@@ -11,13 +11,10 @@
 
 class ReplyAuthorizationValidator extends ConstraintValidator
 {
-    protected AuthorizerInterface $authorizer;
-    protected ParticipantProviderInterface $participantProvider;
-
-    public function __construct(AuthorizerInterface $authorizer, ParticipantProviderInterface $participantProvider)
-    {
-        $this->authorizer = $authorizer;
-        $this->participantProvider = $participantProvider;
+    public function __construct(
+        protected AuthorizerInterface $authorizer,
+        protected ParticipantProviderInterface $participantProvider
+    ) {
     }
 
     /**
diff --git a/Validator/SelfRecipientValidator.php b/Validator/SelfRecipientValidator.php
index 3808663e..004827b4 100644
--- a/Validator/SelfRecipientValidator.php
+++ b/Validator/SelfRecipientValidator.php
@@ -10,11 +10,9 @@
 
 class SelfRecipientValidator extends ConstraintValidator
 {
-    protected ParticipantProviderInterface $participantProvider;
-
-    public function __construct(ParticipantProviderInterface $participantProvider)
-    {
-        $this->participantProvider = $participantProvider;
+    public function __construct(
+        protected ParticipantProviderInterface $participantProvider
+    ) {
     }
 
     /**
diff --git a/Validator/SpamValidator.php b/Validator/SpamValidator.php
index 64ff76f9..dcd989eb 100644
--- a/Validator/SpamValidator.php
+++ b/Validator/SpamValidator.php
@@ -10,11 +10,9 @@
 
 class SpamValidator extends ConstraintValidator
 {
-    protected SpamDetectorInterface $spamDetector;
-
-    public function __construct(SpamDetectorInterface $spamDetector)
-    {
-        $this->spamDetector = $spamDetector;
+    public function __construct(
+        protected SpamDetectorInterface $spamDetector
+    ) {
     }
 
     /**