diff --git a/tests/Feature/ConversationTest.php b/tests/Feature/ConversationTest.php
index 27075cb..bb3df7f 100644
--- a/tests/Feature/ConversationTest.php
+++ b/tests/Feature/ConversationTest.php
@@ -20,7 +20,6 @@
 final class ConversationTest extends TestCase
 {
     private array $userIds;
-
     private array $conversations;
 
     public function setUp(): void
diff --git a/tests/Feature/MessageTest.php b/tests/Feature/MessageTest.php
index 1224ae3..06d604b 100644
--- a/tests/Feature/MessageTest.php
+++ b/tests/Feature/MessageTest.php
@@ -16,9 +16,7 @@
 final class MessageTest extends TestCase
 {
     private string $conversationId;
-
     private string $senderId;
-
     private array $messages;
 
     protected function setUp(): void
diff --git a/tests/Feature/UserTest.php b/tests/Feature/UserTest.php
index 2c19b6a..8525083 100644
--- a/tests/Feature/UserTest.php
+++ b/tests/Feature/UserTest.php
@@ -14,9 +14,7 @@
 final class UserTest extends TestCase
 {
     private string $userId;
-
     private array $userDetails;
-
     private array $userConversations;
 
     protected function setUp(): void
diff --git a/tests/TestCase.php b/tests/TestCase.php
index 0a90bd9..01de248 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -12,7 +12,6 @@
 abstract class TestCase extends BaseTestCase
 {
     protected array $defaultMockResponseHeaders;
-
     protected array $defaultFilters;
 
     protected function setUp(): void
diff --git a/tests/Unit/ConversationTest.php b/tests/Unit/ConversationTest.php
index 7bc7eb8..7835d6a 100644
--- a/tests/Unit/ConversationTest.php
+++ b/tests/Unit/ConversationTest.php
@@ -120,7 +120,7 @@ public function testCreateManyFromArray(): void
         }
     }
 
-    public function testUnreadBy()
+    public function testUnreadBy(): void
     {
         $conversation1 = new Conversation($this->conversations[0]);
         $conversation2 = new Conversation($this->conversations[1]);
diff --git a/tests/Unit/MessageTest.php b/tests/Unit/MessageTest.php
index 3c16b12..a40253c 100644
--- a/tests/Unit/MessageTest.php
+++ b/tests/Unit/MessageTest.php
@@ -11,11 +11,8 @@
 final class MessageTest extends TestCase
 {
     private string $senderId;
-
     private array $messages;
-
     private Message $message1;
-
     private Message $message2;
 
     protected function setUp(): void