diff --git a/activestorage/test/dummy/config/application.rb b/activestorage/test/dummy/config/application.rb
index bd14ac0b1a0081617c931499c0ca4a6cec4b2960..151c8ade4b877da084942048ba4c4d6310944e79 100644
--- a/activestorage/test/dummy/config/application.rb
+++ b/activestorage/test/dummy/config/application.rb
@@ -15,7 +15,7 @@
 
 module Dummy
   class Application < Rails::Application
-    config.load_defaults 5.2
+    config.load_defaults 6.0
 
     config.active_storage.service = :local
   end