diff --git a/tests/_files/DataProviderIssue2833/SecondTest.php b/tests/_files/DataProviderIssue2833/SecondTest.php
index bbe2d10cf0f..8fa706cc677 100644
--- a/tests/_files/DataProviderIssue2833/SecondTest.php
+++ b/tests/_files/DataProviderIssue2833/SecondTest.php
@@ -13,7 +13,7 @@
 
 class SecondTest extends TestCase
 {
-    const DUMMY = 'dummy';
+    public const DUMMY = 'dummy';
 
     public function testSecond(): void
     {
diff --git a/tests/_files/ExceptionNamespaceTest.php b/tests/_files/ExceptionNamespaceTest.php
index 7713a5d8540..88a7d2f31cc 100644
--- a/tests/_files/ExceptionNamespaceTest.php
+++ b/tests/_files/ExceptionNamespaceTest.php
@@ -16,14 +16,14 @@ class ExceptionNamespaceTest extends \PHPUnit\Framework\TestCase
      *
      * @var string
      */
-    const ERROR_MESSAGE = 'Exception namespace message';
+    public const ERROR_MESSAGE = 'Exception namespace message';
 
     /**
      * Exception code
      *
      * @var int
      */
-    const ERROR_CODE = 200;
+    public const ERROR_CODE = 200;
 
     /**
      * @expectedException Class
diff --git a/tests/_files/ExceptionTest.php b/tests/_files/ExceptionTest.php
index 47855f1ef7d..244a53c28d3 100644
--- a/tests/_files/ExceptionTest.php
+++ b/tests/_files/ExceptionTest.php
@@ -16,21 +16,21 @@ class ExceptionTest extends TestCase
      *
      * @var string
      */
-    const ERROR_MESSAGE = 'Exception message';
+    public const ERROR_MESSAGE = 'Exception message';
 
     /**
      * Exception message
      *
      * @var string
      */
-    const ERROR_MESSAGE_REGEX = '#regex#';
+    public const ERROR_MESSAGE_REGEX = '#regex#';
 
     /**
      * Exception code
      *
      * @var int
      */
-    const ERROR_CODE = 500;
+    public const ERROR_CODE = 500;
 
     /**
      * @expectedException FooBarBaz
diff --git a/tests/end-to-end/regression/GitHub/2724/SeparateClassRunMethodInNewProcessTest.php b/tests/end-to-end/regression/GitHub/2724/SeparateClassRunMethodInNewProcessTest.php
index d76dfe07058..472c76a7358 100644
--- a/tests/end-to-end/regression/GitHub/2724/SeparateClassRunMethodInNewProcessTest.php
+++ b/tests/end-to-end/regression/GitHub/2724/SeparateClassRunMethodInNewProcessTest.php
@@ -13,11 +13,11 @@
  */
 class SeparateClassRunMethodInNewProcessTest extends PHPUnit\Framework\TestCase
 {
-    const PROCESS_ID_FILE_PATH = __DIR__ . '/parent_process_id.txt';
+    public const PROCESS_ID_FILE_PATH = __DIR__ . '/parent_process_id.txt';
 
-    const INITIAL_MASTER_PID   = 0;
+    public const INITIAL_MASTER_PID   = 0;
 
-    const INITIAL_PID1         = 1;
+    public const INITIAL_PID1         = 1;
 
     public static $masterPid = self::INITIAL_MASTER_PID;
 
diff --git a/tests/end-to-end/regression/GitHub/2725/BeforeAfterClassPidTest.php b/tests/end-to-end/regression/GitHub/2725/BeforeAfterClassPidTest.php
index ac8804a6c8e..dd602ea2b9f 100644
--- a/tests/end-to-end/regression/GitHub/2725/BeforeAfterClassPidTest.php
+++ b/tests/end-to-end/regression/GitHub/2725/BeforeAfterClassPidTest.php
@@ -16,7 +16,7 @@
  */
 class BeforeAfterClassPidTest extends TestCase
 {
-    const PID_VARIABLE = 'current_pid';
+    public const PID_VARIABLE = 'current_pid';
 
     /**
      * @beforeClass