diff --git a/src/Files/FileList.php b/src/Files/FileList.php
index 66833a3ee4..354c5bbc32 100644
--- a/src/Files/FileList.php
+++ b/src/Files/FileList.php
@@ -170,7 +170,7 @@ private function getFilterClass()
      *
      * @return void
      */
-    #[ReturnTypeWillChange]
+    #[\ReturnTypeWillChange]
     public function rewind()
     {
         reset($this->files);
@@ -183,7 +183,7 @@ public function rewind()
      *
      * @return \PHP_CodeSniffer\Files\File
      */
-    #[ReturnTypeWillChange]
+    #[\ReturnTypeWillChange]
     public function current()
     {
         $path = key($this->files);
@@ -201,7 +201,7 @@ public function current()
      *
      * @return void
      */
-    #[ReturnTypeWillChange]
+    #[\ReturnTypeWillChange]
     public function key()
     {
         return key($this->files);
@@ -214,7 +214,7 @@ public function key()
      *
      * @return void
      */
-    #[ReturnTypeWillChange]
+    #[\ReturnTypeWillChange]
     public function next()
     {
         next($this->files);
@@ -227,7 +227,7 @@ public function next()
      *
      * @return boolean
      */
-    #[ReturnTypeWillChange]
+    #[\ReturnTypeWillChange]
     public function valid()
     {
         if (current($this->files) === false) {
@@ -244,7 +244,7 @@ public function valid()
      *
      * @return integer
      */
-    #[ReturnTypeWillChange]
+    #[\ReturnTypeWillChange]
     public function count()
     {
         return $this->numFiles;
diff --git a/src/Filters/Filter.php b/src/Filters/Filter.php
index a1246a2c52..bbbabfe64d 100644
--- a/src/Filters/Filter.php
+++ b/src/Filters/Filter.php
@@ -90,7 +90,7 @@ public function __construct($iterator, $basedir, Config $config, Ruleset $rulese
      *
      * @return bool
      */
-    #[ReturnTypeWillChange]
+    #[\ReturnTypeWillChange]
     public function accept()
     {
         $filePath = $this->current();
@@ -132,7 +132,7 @@ public function accept()
      *
      * @return \RecursiveIterator
      */
-    #[ReturnTypeWillChange]
+    #[\ReturnTypeWillChange]
     public function getChildren()
     {
         $filterClass = get_called_class();
diff --git a/src/Standards/PEAR/Tests/Commenting/FunctionCommentUnitTest.inc b/src/Standards/PEAR/Tests/Commenting/FunctionCommentUnitTest.inc
index 5c3295fd60..9f8c79e858 100644
--- a/src/Standards/PEAR/Tests/Commenting/FunctionCommentUnitTest.inc
+++ b/src/Standards/PEAR/Tests/Commenting/FunctionCommentUnitTest.inc
@@ -436,7 +436,7 @@ class Something implements JsonSerializable {
      *
      * @return mixed
      */
-    #[ReturnTypeWillChange]
+    #[\ReturnTypeWillChange]
     public function jsonSerialize() {}
 
     /**
@@ -454,7 +454,7 @@ class Something implements JsonSerializable {
      * @return mixed
      */
 
-    #[ReturnTypeWillChange]
+    #[\ReturnTypeWillChange]
     public function blankLineDetectionA() {}
 
     /**
@@ -462,7 +462,7 @@ class Something implements JsonSerializable {
      *
      * @return mixed
      */
-    #[ReturnTypeWillChange]
+    #[\ReturnTypeWillChange]
 
     public function blankLineDetectionB() {}
 
@@ -472,7 +472,7 @@ class Something implements JsonSerializable {
      * @return mixed
      */
 
-    #[ReturnTypeWillChange]
+    #[\ReturnTypeWillChange]
 
     public function blankLineDetectionC() {}
 }
diff --git a/src/Standards/PEAR/Tests/Commenting/FunctionCommentUnitTest.inc.fixed b/src/Standards/PEAR/Tests/Commenting/FunctionCommentUnitTest.inc.fixed
index 751b09c665..200cc23673 100644
--- a/src/Standards/PEAR/Tests/Commenting/FunctionCommentUnitTest.inc.fixed
+++ b/src/Standards/PEAR/Tests/Commenting/FunctionCommentUnitTest.inc.fixed
@@ -436,7 +436,7 @@ class Something implements JsonSerializable {
      *
      * @return mixed
      */
-    #[ReturnTypeWillChange]
+    #[\ReturnTypeWillChange]
     public function jsonSerialize() {}
 
     /**
@@ -454,7 +454,7 @@ class Something implements JsonSerializable {
      * @return mixed
      */
 
-    #[ReturnTypeWillChange]
+    #[\ReturnTypeWillChange]
     public function blankLineDetectionA() {}
 
     /**
@@ -462,7 +462,7 @@ class Something implements JsonSerializable {
      *
      * @return mixed
      */
-    #[ReturnTypeWillChange]
+    #[\ReturnTypeWillChange]
 
     public function blankLineDetectionB() {}
 
@@ -472,7 +472,7 @@ class Something implements JsonSerializable {
      * @return mixed
      */
 
-    #[ReturnTypeWillChange]
+    #[\ReturnTypeWillChange]
 
     public function blankLineDetectionC() {}
 }