diff --git a/maxapi/enums/button_type.py b/maxapi/enums/button_type.py
index 743f5f8..709a07e 100644
--- a/maxapi/enums/button_type.py
+++ b/maxapi/enums/button_type.py
@@ -14,3 +14,5 @@ class ButtonType(str, Enum):
     LINK = 'link'
     REQUEST_GEO_LOCATION = 'request_geo_location'
     CHAT = 'chat'
+    MESSAGE = 'message'
+    OPEN_APP = 'open_app'
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