diff --git a/Casks/airmail-beta.rb b/Casks/airmail-beta.rb
index 34d997e00..23a25afe2 100644
--- a/Casks/airmail-beta.rb
+++ b/Casks/airmail-beta.rb
@@ -1,11 +1,11 @@
 cask 'airmail-beta' do
-  version '2.6.1'
-  sha256 'df3f2c42a7ff30ac48cb012359fc4592e68adbd4d2de750b3e6145f3a65448de'
+  version '2.6.1,351'
+  sha256 'c658b6f8d938f76c3f0090c48b2b49bc4b5eab2eebb0219dcdfb251dc77617cc'
 
   # hockeyapp.net/api/2/apps/84be85c3331ee1d222fd7f0b59e41b04 was verified as official when first introduced to the cask
   url 'https://rink.hockeyapp.net/api/2/apps/84be85c3331ee1d222fd7f0b59e41b04?format=zip'
   appcast 'https://rink.hockeyapp.net/api/2/apps/84be85c3331ee1d222fd7f0b59e41b04',
-          checkpoint: '81963e6554a06178942678221adbd94f9dbe9c42a8fabfb01dbc951c06f7e9ff'
+          checkpoint: '391aa223ba036528ea652f2c09c53847693ca27e450d98800f014fbeae3afb3d'
   name 'AirMail'
   homepage 'http://airmailapp.com/beta/'
   license :unknown # TODO: change license and remove this comment; ':unknown' is a machine-generated placeholder