diff --git a/Casks/steam.rb b/Casks/steam.rb
index 9e5f4f8dee507..245e27dfbabfc 100644
--- a/Casks/steam.rb
+++ b/Casks/steam.rb
@@ -2,7 +2,8 @@
   version :latest
   sha256 :no_check
 
-  url 'http://media.steampowered.com/client/installer/steam.dmg'
+  # steamcdn-a.akamaihd.net was verified as official when first introduced to the cask
+  url 'https://steamcdn-a.akamaihd.net/client/installer/steam.dmg'
   name 'Steam'
   homepage 'http://store.steampowered.com/about/'
   license :gratis