diff --git a/src/wp-includes/Requests/Utility/FilteredIterator.php b/src/wp-includes/Requests/Utility/FilteredIterator.php
index b90cbcd76abd6..5d0c7449ec919 100644
--- a/src/wp-includes/Requests/Utility/FilteredIterator.php
+++ b/src/wp-includes/Requests/Utility/FilteredIterator.php
@@ -43,4 +43,20 @@ public function current() {
 		return $value;
 	}
 
+
+	/**
+	 * @inheritdoc
+	 */
+	public function unserialize( $serialized ) {
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function __unserialize( $serialized ) { // phpcs:ignore PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames.MethodDoubleUnderscore,PHPCompatibility.FunctionNameRestrictions.NewMagicMethods.__unserializeFound
+	}
+
+	public function __wakeup() { // phpcs:ignore PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames.MethodDoubleUnderscore,PHPCompatibility.FunctionNameRestrictions.NewMagicMethods.__wakeupFound
+		unset( $this->callback );
+	}
 }