diff --git a/README.md b/README.md
index d746898..2e56a22 100644
--- a/README.md
+++ b/README.md
@@ -12,11 +12,13 @@ pip install showdialog
 Opens GTK MessageDialog
 
 #### Args
-- title (`str`): Dialog caption
-- text (`Union[Tuple[Optional[str], bool], Optional[str]]`): Dialog primary text, str or tuple `(text, use_markup)`
-- sectext (`Union[Tuple[Optional[str], bool], Optional[str]]`, optional): Dialog secondary text, str or tuple. Defaults to `None`.
-- btns (`Gtk.ButtonsType`, optional): Dialog buttons. Defaults to `Gtk.ButtonsType.OK`.
-- msgtype (`Gtk.MessageType`, optional): Dialog message type. Defaults to `Gtk.MessageType.INFO`.
+|Name|Type|Description|Default value|
+|:--:|:--:|:----------|:------:|
+|title|`str`|Dialog caption|*Required*|
+|text|`Tuple[Optional[str], bool] | Optional[str]`|Dialog primary text, str or tuple: `(text, use_markup)`|*Required*|
+|sectext|`Tuple[Optional[str], bool] | Optional[str]`, optional|Dialog secondary text, str or tuple|`None`|
+|btns|`Gtk.ButtonsType`|Dialog buttons|`Gtk.ButtonsType.OK`|
+|msgtype|`Gtk.MessageType`|Dialog message type|`Gtk.MessageType.INFO`|
 
 #### Example:
 ```python