diff --git a/README.md b/README.md
index 5898411..37b020f 100644
--- a/README.md
+++ b/README.md
@@ -139,7 +139,7 @@ NotificationChannelConfig
 |-----------------|-----------------------------------------------------------------------------------------------------------------------|----------|
 | id              | Unique channel id                                                                                                     | yes      |
 | name            | Notification channel name                                                                                             | yes      |
-| description     | Notification channel description                                                                                      | no       |
+| description     | Notification channel description                                                                                      | yes (Android 9+)       |
 | importance      | Notification channel importance. One of:<ul><li>1 – 'min'</li> <li>2 – 'low' (by default)</li><li>3 – 'default'</li><li>4 – 'high'</li><li>5 – 'max'</li></ul> | no       |
 | enableVibration | Sets whether notification posted to this channel should vibrate. False by default.                                    | no       |
 
@@ -154,4 +154,4 @@ NotificationConfig
 | title         | Notification title                                                                                                                                      | yes                   |
 | text          | Notification text                                                                                                                                       | yes                   |
 | icon          | Icon name                                                                                                                                               | yes                   |
-| priority      | Priority of this notification. One of: <ul><li>&nbsp;0 – PRIORITY_DEFAULT (by default)</li><li>-1 – PRIORITY_LOW</li><li>-2 – PRIORITY_MIN</li><li>&nbsp;1 – PRIORITY_HIGH</li><li>&nbsp;2 – PRIORITY_MAX</li></ul> | no       |
\ No newline at end of file
+| priority      | Priority of this notification. One of: <ul><li>&nbsp;0 – PRIORITY_DEFAULT (by default)</li><li>-1 – PRIORITY_LOW</li><li>-2 – PRIORITY_MIN</li><li>&nbsp;1 – PRIORITY_HIGH</li><li>&nbsp;2 – PRIORITY_MAX</li></ul> | no       |