diff --git a/actionpack/CHANGELOG.md b/actionpack/CHANGELOG.md
index d70fc20cbc..ee3ff907cc 100644
--- a/actionpack/CHANGELOG.md
+++ b/actionpack/CHANGELOG.md
@@ -1,3 +1,8 @@
+*   Remove deprecated Rails application fallback for integration testing, set
+    `ActionDispatch.test_app` instead.
+
+    *Carlos Antonio da Silva*
+
 *   Remove deprecated `page_cache_extension` config.
 
     *Francesco Rodriguez*
diff --git a/actionpack/lib/action_dispatch/testing/integration.rb b/actionpack/lib/action_dispatch/testing/integration.rb
index 1f899a434c..19332a2bc2 100644
--- a/actionpack/lib/action_dispatch/testing/integration.rb
+++ b/actionpack/lib/action_dispatch/testing/integration.rb
@@ -489,10 +489,6 @@ module ActionDispatch
     @@app = nil
 
     def self.app
-      if !@@app && !ActionDispatch.test_app
-        ActiveSupport::Deprecation.warn "Rails application fallback is deprecated and no longer works, please set ActionDispatch.test_app"
-      end
-
       @@app || ActionDispatch.test_app
     end