diff --git a/Casks/o/opal-composer.rb b/Casks/o/opal-composer.rb
index c83e3e9e61..cd61646af8 100644
--- a/Casks/o/opal-composer.rb
+++ b/Casks/o/opal-composer.rb
@@ -2,7 +2,8 @@ cask "opal-composer" do
   version "1.1.1,5"
   sha256 "82ddfe5c8375caf3523b7409fa32fc34612b5d8e755fe9a1d4b08502112c5bda"
 
-  url "https://updates.opal.camera/release/Opal_Composer_#{version.csv.first}_#{version.csv.second}.dmg"
+  url "https://updates.opal.camera/release/Opal_Composer_#{version.csv.first}_#{version.csv.second}.dmg",
+      verified: "updates.opal.camera/release/"
   name "Opal Composer"
   desc "Professional webcam software for the Opal C1"
   homepage "https://opalcamera.com/opal-composer"