diff --git a/api/src/Db/CallbackIterator.php b/api/src/Db/CallbackIterator.php
index def77661ba..6a515707f6 100644
--- a/api/src/Db/CallbackIterator.php
+++ b/api/src/Db/CallbackIterator.php
@@ -120,7 +120,8 @@ class CallbackIterator implements \Iterator
 	 *
 	 * @return mixed
 	 */
-	public function current(): mixed
+	#[\ReturnTypeWillChange]
+	public function current()
 	{
 		if (is_a($this->rs,'iterator'))
 		{
@@ -136,7 +137,8 @@ class CallbackIterator implements \Iterator
 	 *
 	 * @return mixed
 	 */
-	public function key(): mixed
+	#[\ReturnTypeWillChange]
+	public function key()
 	{
 		if (is_a($this->rs,'iterator'))
 		{
diff --git a/api/src/Mail/Account.php b/api/src/Mail/Account.php
index 6cb8815024..267b095f5e 100644
--- a/api/src/Mail/Account.php
+++ b/api/src/Mail/Account.php
@@ -908,7 +908,8 @@ class Account implements \ArrayAccess
 	 * @param string $offset
 	 * @return mixed
 	 */
-	public function offsetGet($offset): mixed
+	#[\ReturnTypeWillChange]
+	public function offsetGet($offset)
 	{
 		return $this->__get($offset);
 	}