diff --git a/schemas/2021-05-01-preview/Microsoft.BotService.json b/schemas/2021-05-01-preview/Microsoft.BotService.json
index 5b62ba7dbc..4d39262e28 100644
--- a/schemas/2021-05-01-preview/Microsoft.BotService.json
+++ b/schemas/2021-05-01-preview/Microsoft.BotService.json
@@ -173,7 +173,8 @@
                 "DirectLineChannel",
                 "SmsChannel",
                 "LineChannel",
-                "DirectLineSpeechChannel"
+                "DirectLineSpeechChannel",
+                "OutlookChannel"
               ]
             },
             {
@@ -671,7 +672,8 @@
                 "DirectLineChannel",
                 "SmsChannel",
                 "LineChannel",
-                "DirectLineSpeechChannel"
+                "DirectLineSpeechChannel",
+                "OutlookChannel"
               ]
             },
             {