diff --git a/src/Telegram/BotCommandScope.php b/src/Telegram/BotCommandScope.php
index 51fb5b5..efb4e03 100644
--- a/src/Telegram/BotCommandScope.php
+++ b/src/Telegram/BotCommandScope.php
@@ -17,7 +17,7 @@ abstract class BotCommandScope extends Type implements Factory
     /** Scope type */
     public string $type;
 
-    public static function factory(array $data): static
+    public static function factory(array $data): self
     {
         return match($data['type']) {
             'default' => new BotCommandScopeDefault($data),
diff --git a/src/Telegram/ChatMember.php b/src/Telegram/ChatMember.php
index 7423802..d4f7c48 100644
--- a/src/Telegram/ChatMember.php
+++ b/src/Telegram/ChatMember.php
@@ -20,7 +20,7 @@ abstract class ChatMember extends Type implements Factory
     /** Information about the user */
     public User $user;
 
-    public static function factory(array $data): static
+    public static function factory(array $data): self
     {
         return match($data['status']) {
             'creator' => new ChatMemberOwner($data),
diff --git a/src/Telegram/InlineQueryResult.php b/src/Telegram/InlineQueryResult.php
index 7eb1da0..beb87fb 100644
--- a/src/Telegram/InlineQueryResult.php
+++ b/src/Telegram/InlineQueryResult.php
@@ -23,7 +23,7 @@ abstract class InlineQueryResult extends Type implements Factory
     /** Optional. Inline keyboard attached to the message */
     public ?InlineKeyboardMarkup $reply_markup = null;
 
-    public static function factory(array $data): static
+    public static function factory(array $data): self
     {
         return match($data['type']) {
             'audio' => new InlineQueryResultAudio($data),
diff --git a/src/Telegram/InputMedia.php b/src/Telegram/InputMedia.php
index 38a2af5..18d02a4 100644
--- a/src/Telegram/InputMedia.php
+++ b/src/Telegram/InputMedia.php
@@ -32,7 +32,7 @@ abstract class InputMedia extends Type implements Factory
      */
     public ?array $caption_entities = null;
 
-    public static function factory(array $data): static
+    public static function factory(array $data): self
     {
         return match($data['type']) {
             'animation' => new InputMediaAnimation($data),
diff --git a/src/Telegram/InputMessageContent.php b/src/Telegram/InputMessageContent.php
index 40b3630..62700c6 100644
--- a/src/Telegram/InputMessageContent.php
+++ b/src/Telegram/InputMessageContent.php
@@ -14,7 +14,7 @@
  */
 abstract class InputMessageContent extends Type implements Factory
 {
-    public static function factory(array $data): static
+    public static function factory(array $data): self
     {
         return match($data[null]) {
             '' => new InputInvoiceMessageContent($data),
diff --git a/src/Telegram/MenuButton.php b/src/Telegram/MenuButton.php
index d8f6ddc..b3482ef 100644
--- a/src/Telegram/MenuButton.php
+++ b/src/Telegram/MenuButton.php
@@ -17,7 +17,7 @@ abstract class MenuButton extends Type implements Factory
     /** Type of the button */
     public string $type;
 
-    public static function factory(array $data): static
+    public static function factory(array $data): self
     {
         return match($data['type']) {
             'commands' => new MenuButtonCommands($data),
diff --git a/src/Telegram/PassportElementError.php b/src/Telegram/PassportElementError.php
index 59f013c..5b90e85 100644
--- a/src/Telegram/PassportElementError.php
+++ b/src/Telegram/PassportElementError.php
@@ -23,7 +23,7 @@ abstract class PassportElementError extends Type implements Factory
     /** Error message */
     public string $message;
 
-    public static function factory(array $data): static
+    public static function factory(array $data): self
     {
         return match($data['source']) {
             'data' => new PassportElementErrorDataField($data),
diff --git a/src/Types/Factory.php b/src/Types/Factory.php
index 8c97855..5069241 100644
--- a/src/Types/Factory.php
+++ b/src/Types/Factory.php
@@ -5,6 +5,6 @@
 interface Factory
 {
 
-    public static function factory(array $data): static;
+    public static function factory(array $data): self;
 
 }
\ No newline at end of file
diff --git a/telepathy b/telepathy
index 1b867e2..487cb58 100755
Binary files a/telepathy and b/telepathy differ