diff --git a/app/controllers/user_avatars_controller.rb b/app/controllers/user_avatars_controller.rb
index 3b0dd7099c..be9118855f 100644
--- a/app/controllers/user_avatars_controller.rb
+++ b/app/controllers/user_avatars_controller.rb
@@ -46,7 +46,7 @@ class UserAvatarsController < ApplicationController
 
     hijack do
       begin
-        proxy_avatar("https://avatars.discourse.org/#{params[:version]}/letter/#{params[:letter]}/#{params[:color]}/#{params[:size]}.png", Time.new('1990-01-01'))
+        proxy_avatar("https://avatars.discourse-cdn.com/#{params[:version]}/letter/#{params[:letter]}/#{params[:color]}/#{params[:size]}.png", Time.new('1990-01-01'))
       rescue OpenURI::HTTPError
         render_blank
       end
diff --git a/spec/requests/user_avatars_controller_spec.rb b/spec/requests/user_avatars_controller_spec.rb
index 8ba24ce186..1ff23e6239 100644
--- a/spec/requests/user_avatars_controller_spec.rb
+++ b/spec/requests/user_avatars_controller_spec.rb
@@ -12,7 +12,7 @@ describe UserAvatarsController do
     end
 
     it 'returns an avatar if we are allowing the proxy' do
-      stub_request(:get, "https://avatars.discourse.org/v3/letter/a/aaaaaa/360.png").to_return(body: 'image')
+      stub_request(:get, "https://avatars.discourse-cdn.com/v3/letter/a/aaaaaa/360.png").to_return(body: 'image')
       get "/letter_avatar_proxy/v3/letter/a/aaaaaa/360.png"
       expect(response.status).to eq(200)
     end