diff --git a/src/Framework/Error/Deprecation.php b/src/Framework/Error/Deprecation.php
index f3cff80e948..9c1002db581 100644
--- a/src/Framework/Error/Deprecation.php
+++ b/src/Framework/Error/Deprecation.php
@@ -9,9 +9,6 @@
  */
 namespace PHPUnit\Framework\Error;
 
-/**
- * @internal This class is not covered by the backward compatibility promise for PHPUnit
- */
 final class Deprecation extends Error
 {
 }
diff --git a/src/Framework/Error/Error.php b/src/Framework/Error/Error.php
index 895f92248fe..61e80f8b62f 100644
--- a/src/Framework/Error/Error.php
+++ b/src/Framework/Error/Error.php
@@ -11,9 +11,6 @@
 
 use PHPUnit\Framework\Exception;
 
-/**
- * @internal This class is not covered by the backward compatibility promise for PHPUnit
- */
 class Error extends Exception
 {
     public function __construct(string $message, int $code, string $file, int $line, \Exception $previous = null)
diff --git a/src/Framework/Error/Notice.php b/src/Framework/Error/Notice.php
index 71e75bfd8af..4a3d01da061 100644
--- a/src/Framework/Error/Notice.php
+++ b/src/Framework/Error/Notice.php
@@ -9,9 +9,6 @@
  */
 namespace PHPUnit\Framework\Error;
 
-/**
- * @internal This class is not covered by the backward compatibility promise for PHPUnit
- */
 final class Notice extends Error
 {
 }
diff --git a/src/Framework/Error/Warning.php b/src/Framework/Error/Warning.php
index a2a1bf5fb0d..d49f99144c7 100644
--- a/src/Framework/Error/Warning.php
+++ b/src/Framework/Error/Warning.php
@@ -9,9 +9,6 @@
  */
 namespace PHPUnit\Framework\Error;
 
-/**
- * @internal This class is not covered by the backward compatibility promise for PHPUnit
- */
 final class Warning extends Error
 {
 }