diff --git a/Casks/fabric.rb b/Casks/fabric.rb
index 774e4ecfcef..e90446f2729 100644
--- a/Casks/fabric.rb
+++ b/Casks/fabric.rb
@@ -4,6 +4,8 @@ cask :v1 => 'fabric' do
 
   url 'https://ssl-download-crashlytics-com.s3.amazonaws.com/fabric/builds/Fabric-latest.zip'
   name 'Fabric'
+  appcast 'https://ssl-download-crashlytics-com.s3.amazonaws.com/fabric/version.xml',
+          :sha256 => '261546b7f617365ffa215ed1d1184f6892ce162ab035a3f31dee90058ef8fa9a'
   homepage 'https://get.fabric.io/'
   license :unknown