diff --git a/Casks/p/polyphone.rb b/Casks/p/polyphone.rb
index 4d89c56feeb1..972b20edea93 100644
--- a/Casks/p/polyphone.rb
+++ b/Casks/p/polyphone.rb
@@ -2,7 +2,8 @@
   version "2.4,95"
   sha256 "d2791bba43fdefdc8c3c7fce5bf11d6ff9eb267495f78315931e9ac2251d082f"
 
-  url "https://www.polyphone.io/download/0/v#{version.csv.second}/Polyphone-macOS_11-15.dmg"
+  url "https://www.polyphone.io/download/0/v#{version.csv.second}/Polyphone-macOS_11-15.dmg",
+      user_agent: :browser
   name "Polyphone"
   desc "Soundfont editor for quickly designing musical instruments"
   homepage "https://www.polyphone.io/en"