diff --git a/activemodel/lib/active_model/naming.rb b/activemodel/lib/active_model/naming.rb
index adf000e53c350674c801d286984296623d492a3d..5665e100028137c5005303e740fd1a1ec2f0f095 100644
--- a/activemodel/lib/active_model/naming.rb
+++ b/activemodel/lib/active_model/naming.rb
@@ -1,7 +1,6 @@
 require 'active_support/inflector'
 require 'active_support/core_ext/hash/except'
 require 'active_support/core_ext/module/introspection'
-require 'active_support/core_ext/module/deprecation'
 require 'active_support/core_ext/module/delegation'
 require 'active_support/core_ext/object/blank'