diff --git a/Casks/hearthstone-en-gb.rb b/Casks/hearthstone-en-gb.rb
index 1aee82d76..3ef2872b2 100644
--- a/Casks/hearthstone-en-gb.rb
+++ b/Casks/hearthstone-en-gb.rb
@@ -2,7 +2,7 @@ cask 'hearthstone-en-gb' do
   version :latest
   sha256 :no_check
 
-  url 'http://eu.battle.net/download/getInstaller?os=mac&installer=Hearthstone-Setup-enGB.zip'
+  url 'https://eu.battle.net/download/getInstaller?os=mac&installer=Hearthstone-Setup-enGB.zip'
   homepage 'http://eu.battle.net/hearthstone/en/'
   license :unknown