diff --git a/Casks/electrum.rb b/Casks/electrum.rb
index d2da5091435..f917f35a209 100644
--- a/Casks/electrum.rb
+++ b/Casks/electrum.rb
@@ -1,8 +1,10 @@
 cask 'electrum' do
-  version '2.7.14'
-  sha256 '540206f8ebc83e6d83f85adbf66a80833b436d6fd08cb01294c1724e7c846086'
+  version '2.7.17'
+  sha256 'b549845ec352ed6464f6aea33501cb7bf76ab50365710d2b1047c3f95742d08a'
 
   url "https://download.electrum.org/#{version}/electrum-#{version}.dmg"
+  appcast 'https://github.com/spesmilo/electrum/releases.atom',
+          checkpoint: '22ba4bc1fd1884191582704505d1057250e16a6387ebf2d5bb20e992f30eef3e'
   name 'Electrum'
   homepage 'https://electrum.org/'
   gpg "#{url}.asc", key_id: '6694d8de7be8ee5631bed9502bd5824b7f9470e6'